冲压模具设计中英文对照外文翻译文献
模具制造论文中英文对照资料外文翻译文献
中英文对照资料外文翻译文献英文原文：High-speed cutting processing in mold manufactureapplicationAbstractThe current mold application is widespread, also had the very big development with it related die making technology. At present, used the high-speed cutting production mold already to become the die making the general trend. In some mold Manufacturer, the high speed engine bed big area substitution electrical discharge machine, the high-speed cutting production mold already gradually became the die making the general trend. It can improve mold's size, the shape and the surface roughness, reduces even omits the manual sharpening, thus reduces production cost and the reduction manufacturing cycle. This article through to the traditional mold processing craft and the high speed mold processing craft's contrast, elaborated the high-speed cutting processing superiority. In the article also briefly introduced the high-speed cutting processing in the processing craft aspect key technologies.Keywords High-speed cutting Grinding tool Grinding tool processing Process technology1 Introduction1.1 IntroductionAlong with the advance in technology and the industry swift development, the mold already became in the industrial production to use the extremely widespread main craft to equip now. The mold takes the important craft equipment, in Industry sectors and so on consumable, electric appliance electron, automobile, airplane manufacture holds the pivotal status. The manufactured products components rough machining 75%, the precision work 50% and the plastic parts 90% will complete by the mold. At present the Chinese mold market demand has reached 50,000,000,000 Yuan scales, our country die making market potential is huge. The mold is one kind of special-purpose tool, uses in forming () each metal or the nonmetallic material needs the components the shape product, this kind of special-purpose tool general designation mold. The mold is in the industrial production the most foundation equipment, is realizes the few cuttings and the non-cutting essential tool. The mold has widely used in the industrial production each domain, like the automobile, the motorcycle, the domestic electric appliances, the instrument, the measuring appliance, the electron and so on, in them 60%~80% components need the mold to carry on the manufacture; The highly effective production in enormous quantities's, bolt, nut and gasket standard letters and so on plastic also need the mold to produce; The engineering plastics, the powder metallurgy, the rubber, the alloy compression casting, the glass formation and so on need to use the mold to take shape.1.2 High-speed cutting process technologyAs the name suggests, the high-speed cutting, first is the high speed, namely must have the high spindle speed, for instance 12000r/min, 18000r/min, 30000r/min, 40000r/min, even also had a higher rotational speed still in the experiment; On the other hand, should also have the bigger to feed quantity, like 30000mm/min, 40000mm/min, even 60000mm/min; Has is after again the rapid traverse, trades fast the knife, the main axle trade the knife, from the static state arrives its needs rotational speed rise time and so on, only then achieved the above standards to be able to call it high speed.Next is must aim at the different processing object, the different degree of hardness, thedifferent material quality, the different shape to choose the corresponding reasonable parameter, but cannot pursue constantly to be high speed and be high speed, regarding the die space processing, the shape is specially complex, but the cutting tool diameter is also small time, because cutting tool's path is not the simple translation, but is the curve, even has right angle corner time, technological parameter rational especially important, if because wants to maintain the identical feed rate carries on the orthogonal cutting, will not be able to do well will cause as a result of the engine bed moving part's huge inertia the cutting tool will make when the bend angle movement to break suddenly, but the variable motion can, becauseMovements and so on acceleration and deceleration create the thickness of cutting the instantaneous change, but causes the cutter change to enable the work piece surface to have cuts, from this causes the processing drop in quality, therefore, in view of the different processing object, needs the programmers to choose the reasonable cutting tool path, optimized cutting parameter; On the other hand, according to needs to choose the suitable cutting velocity, only then can display the high-speed cutting truly like the strong point.The high-speed cutting (HSC) is an advanced technique of manufacture which for the past ten years rapidly rises. Because the high-speed cutting technology has the cutting efficiency to be high, the processing quality high, can process the hard steel stock and the good efficiency directly, causes profession and so on aviation, mold, automobile, light industry and information production efficiencies and the manufacture quality obviously enhances, and causes the processing craft and the equipment corresponding renewal. Therefore is similar to the numerical control technology is the same, the high-speed cutting and the high speed processing have become in the 21st century a machine-building industry influence profound technological revolution. At present, adapts the HSC request high speed machining center and other high speed numerically-controlled machine tool has assumed the popularization tendency in the developed country, our country recently is also speeding up the development.The high-speed cutting processing is faces for the 21st century a high technology and new technology, it is one kind is different with the traditional processing processing way. Compares with it, the high-speed cutting processing main axle rotational speed high, cuts high for the speed, the cutting quantity is small, but in the unit time material excises the quantity to increase 3 ~ 6 times actually. It take the high efficiency, the high accuracy and the high surface quality as the basic characteristic, in profession and so on in automobile industry, aerospace, mold manufacture and instrument measuring appliance has obtained the increasingly widespread application, and has obtained the significant technology economic efficiency, is the contemporary advanced manufacture technology important constituent.When with traditional way processing mold, often uses the electric spark machining, but the electrode design and makes itself is the technological process which time-consuming takes the trouble. But after uses the high-speed cutting processing, because the narrow and small region processing realization and the high grade superficial result, let the electrode the utilization ratio reduce greatly. Moreover, makes the electrode with the high speed mill also to be possible to make the production efficiency to enhance to a new scale.The major part mold may use the high-speed cutting technology to process, like the forging die, the compression casting mold, cast with the blow molding mold and so on. Hammers the cavity body shallowly, the cutting tool life is long; Compression casting mold size moderate, the productivity is high; Casts with the blow molding mold general size small, quite is economical.2 the high-speed cutting processing mold relative traditionprocesses the mold the superiority2.1 Enhances the productivityIn the high-speed cutting the main axle rotational speed and enters for the speed enhancement, may enhance material removing rate. At the same time, theThe high-speed cutting processing permission use big to feed rate, enhances 5~10 times compared to the convention machining, the unit interval/unit time material excision rate may enhance 3~6 times, the process period may reduce greatly. This may use in processing needs to excise the metal massively the components, specially has the very vital significance regarding the aviation industry.2.2 Improvement processing precishon and surface qualhtyThe high rpeed engine bed must have high performance and so on rigidity and high accuracy, at the same time because cutting force low, the work piece thermal deformation reduces, the cutting tool distorts slightly, the high-speed cutting processing precision Is very high. Depth of cut small, but enters for the speed quickly, the processing surface roughness is very small, cuts when the aluminum alloy may reach Ra0.4 ~ 0.6, when cutting steel stock may reach Ra0.2 ~ 0.4.Compares with the conventional cutting, when high-speed cutting processing the cutting force may reduce 30% at least, this may reduce the processing regarding the processing rigidity bad components to distort, causes some thin wall class fine work piece the machining into possible. Because revolves high speed time the cutting tool cuts the excitation frequency is far away from the craft system's forced oscillation, has guaranteed the good processing condition. Because the cutting force is too small, cut the hot influence to be small, causes the cutting tool, the work piece distortion to be small, maintained the size accuracy, moreover also caused the friction between the cutting tool work piece changes is small, the cutting destruction level thinned, the residual stress was small, has realized the high accuracy, the low roughness processing.2.3 The reduced cutting produces quantity of heatBecause the high-speed cutting processing is the shallow cutting, simultaneously the feed rate is very quick, the knife edge and the work piece contact length and the contact duration were short,reduced the knife edge and the work piece heat conduction, has avoided when the traditional processing met everywhere in the cutting tool and the work piece to have the big calorimetry shortcoming, guaranteed that the cutting tool worked under the temperature not high condition, lengthened cutting tool's service life. As shown in Figure 1, A is time the high-speed cutting processing heat conduction process, B is the traditional processing heat conduction process.Fig.1 high speed processing and traditional processing heat conductionThe high-speed cutting processing process is extremely rapid, 95% above cutting quantity of heat are extremely few, components not because the temperature rise will cause the warp or the inflation distortion. The high-speed cutting is suitable specially for the processing easy thermal deformation components. Is low regarding the processing melting point the metal which, easy to oxidize (for example magnesium), the high-speed cutting has certain significance.2.4 advantageoued in the processing thin wall componentsTime high-speed cutting's cutting force is small, has the high stability, but the high quality processes the thin wall components. Uses as shown in Figure 2 the lamination down milling the processing method, but high-speed cutting wall thickness 0.2mm, wall high 20mm thin wall components. This time, the knife edge and the work piece contact duration was short, has avoided the sidewall distortion.Figure.2 high-speed cutting thin wall components2.5 change the part substitutes certain crafts, like electric spark machining, abrasive machining and so onHigh strength and the high degree of hardness's processing is also a high-speed cutting major characteristic, at present, the high-speed cutting has been possible the work hardness to reach HRC60 the components, therefore, the high-speed cutting can process after the heat treatment hardens the work piece. In the tradition processes in mold's craft, before the precision work, hardens the work piece after the heat treatment to carry on the electric spark machining, may omit in the die making craft with the high-speed cutting processing substitution tradition cutting's processing method the electric spark machining, simplified the processing craft and the cost of investment.the mold's size, the shape and the surface roughness are very important, if after processing the mold cannot meet the requirements the quality precision, needs the massive handworks to rub repairs the work, the handwork rubs repairs can obtain the good surface quality, but it will affect mold's size and the shape precision. Therefore must omit as far as possible in the mold processing rubs manually repairs, improves the mold quality, reduces the production cost and the manufacturing cycle.Figure 3 is the traditional mold processing process: The semifinished materials -> rough machining -> semi-finishing -> heat treatment hardens -> the electric spark machining -> precision work -> to rub manually repairs. Figure 4 is the high speed mold processing process: Hardened semifinished materials -> rough machining -> semi-finishing -> precision work.Figure.3 the traditional mold processes processFigure 4 the high speed mold processes processin Figure 4, in the high speed mold machining process reduced two technological processes,probably reduces the process period 30%~50%. In the traditional processing craft's electric spark machining forms the hardened level easily in the melting processing surface layer, degree of hardness may reach 1000Hv, brings the difficulty for the following machining and the abrasive machining. The electric spark machining also easy to cause the surface layer fatigue cracking and cutting tool's breakage.2.6 Economic efficiency remarkable enhancementSynthesis above all sorts of merits, namely: The comprehensive efficiency will improve, the quality enhances, the working procedure simplifies, the engine bed investment and the cutting tool investment as well as the maintenance cost increase and so on, will use the high-speed cutting craft to cause the synthesis economic efficiency remarkable enhancement.3 high-speed cutting processing craft essential technologyThe high speed engine bed and the high speed cutter are the realization high-speed cutting premise and the basic condition, has the strict request in the high-speed cutting processing to the high speed engine bed performance and the cutting tool material choice.In order to realize the high-speed cutting processing, uses the high flexible high speed numerical control engine bed, the processing center generally, also some use special-purpose high speed mills, drilling machine. At the same time the engine bed has the high speed main axle to be systematic and the high rapid advance or progress gives the system, the high main axle rigidity characteristic, the high accuracy localization function and the high accuracy insert makes up the function, specially the circular arc high accuracy inserts makes up the function.The high-speed cutting cutting tool and ordinary processes the cutting tool the material to have is very greatly different. The main use cutting tool material has the hard alloy, the crystal combination diamond (PCD), the crystal combination cube boron nitride (PCBN) and the ceramics and so on.The high-speed cutting craft technology also is carries on the high-speed cutting processing the key. The cutting method chooses is improper, can make the cutting tool to intensify the attrition, cannot achieve the high speed processing completely the goal. The practice proved, if only then the high speed engine bed and the cutting tool but do not have the good craft technology to make the instruction, the expensive high-speed cutting processing equipment cannot fully play the role. The high-speed cutting processing craft essential technology mainly includes the cutting method and the cutting parameter choice optimization.a. Cutting way choiseIn the high-speed cutting processing, should select the down milling processing as far as possible, because in down milling time, the cutting tool just cut into the thickness of chip which the work piece produces to a big way, afterward reduces gradually. When up milling, the cutting tool just cut into the thickness of chip which the work piece produces to be smallest, afterward the accumulation, increased the cutting tool and the work piece friction like this gradually, has the big calorimetry on the knife edge, therefore produces in the up milling quantity of heat when down milling are more than, the radial force also greatly increases. Meanwhile in the down milling, the knife edge main compression stress, but when the up milling the knife edge tension stress, the stressful condition is bad, reduced cutting tool's service life, the down milling and the up milling the cutting tool cuts into the work piece the process, as shown in Figure 5.Figure.5 the cutting tool cuts into the work piece the process hintb. Maintains constant metal removing rateThe high-speed cutting processing is shallowly suitable for shallowly to cut the depth, the depth of cut should not surpass 0.2/ 0.2mm (ae/Ap), this is for avoids the cutting tool the position deviation, guarantees processes the mold the geometry precision. Maintains constant metal removing rate, guaranteed adds on the work piece the cutting load is constant, by obtains following several good processing effect: (1) may maintain constant cutting load; (2) may maintain the scrap size constant; (3) has the good hot shift; (4) the cutting tool and the work piece maintain at the cold condition; (5) does not need skilled to operate for the quantity and the main axle rotational speed;(6) may lengthen the cutting tool the life; (7) can guarantee the good processing quality and so on.c.choice of the Feeds wayRegarding has opens the mouth die space the region, feeds as far as possible from material outside, by real-time analysis material cutting condition. But regarding does not have the die space enclosed area, selects the screw feed method, cuts into the local region.d. As far as possible reduced cutting tool's commutation rapidlyReduces the cutting tool as far as possible the rapidly commutation, because the zigzag pattern mainly applies in the traditional processing, mainly chooses the return route or the sole way cutting in the high-speed cutting processing. This is because in commutation time the NC engine bed must stop (urgently changing down) immediately then the again execution next step of operation. As a result of engine bed acceleration limitation, but is easy to create the time the waste, stops anxiously or whips then can destroy the surface roughness, also has the possibility because has cut but produces the broach or in the outside undercut. Chooses the sole way cutting pattern to carry on the down milling, does not sever the cutting process and the cutting tool way as far as possible, reduces the cutting tool to cut into as far as possible cuts the number of times, by obtains the relatively stable cutting process.For example, in the cutting mold corner processing, the traditional processing method is usesthe translation (G1), when the cutting tool cuts to the fillet place, the velocity of movement reduces speed, at the same time when enters for the commutation the cutting tool movement is not continuously, can have the massive friction and the quantity of heat in the intermittent process, if processes the aluminum alloy or other light metal alloys, produces the quantity of heat will damage the work piece surface quality.If uses the high-speed cutting processing the method, the use is smaller than the cutting mold corner radius cutting tool, the use high speed engine bed high accuracy circular arc inserts makes up the function (G2, G3) processes the mold corner, the high speed engine bed circular arc inserts makes up the movement is the continuous process, cannot have the cutting tool intermittent motion, thus reduced the cutting tool and the mold contact length and the time, avoids having the massive heat.e In Z direction cutting continual planeThe traditional processing die space's method uses the profile milling, this processing way increased the cutting tool to cut into, to cut the work piece the number of times, has affected the work piece surface quality, has limited the engine bed and the cutting tool formidable function display. In the high-speed cutting processing, often uses the Z direction cutting continual plane. Uses step pitch which is smaller than the convention, thus reduces each tooth cutting elimination quantity, the improvement processing surface's quality, reduced the process period.4 High-speed cutting process technology in die makingapplicationThe high-speed cutting process technology has a series of characteristics and the production benefit aspect's great potential, already becomes country competition research and so on Germany, US and Japan important areas of technology. Now, US, Germany, Japan, France, Switzerland, Italy produce the different specification's each kind of commercialization high speed engine bed already entered the market, applies in the airplane, the automobile and the die making.Along with the high-speed cutting process technology introduction mold industry, has had the very tremendous influence to the traditional mold processing craft, changed the mold processing technical process. Because the mold profile is the very complex free surface generally, and degree of hardness is very high, uses conventional the machining method to satisfy the precision and the shape request with difficulty. The conventional processing method is after the annealing carries on the milling processing, then carries on the heat treatment, the grinding or the electric spark machining, finally the manual polish, polishing, cause the processing cycle to be very long like this. Specially the manual process period, must account for the entire processing cycle to be very big a part. HSC may achieve the accuracy requirement which the mold processes, reduced has even cancelled the manual processing, because and new cutting tool material (for example PCD, PCBN, cermet and so on) the appearance, HSC may the work hardness achieve HRC60, even degree of hardness higher work piece material, after might process hard mold, substitution electric spark machining and abrasive machining.The high speed milling processing has the highly effective high accuracy in the die making as well as may process the high hard material the merit, already obtained the widespread application in the industrially advanced country. The high-speed cutting process technology introduction mold industry, mainly applies in the following several aspects:1) hard mold die space direct processing. After using the high-speed cutting to be possible to process the hard material the characteristic direct processing hard mold die space, improved the quality which and the efficiency the mold processes, may substitute for the electric spark machining.(2) EDM (electric spark) electrode processing. Applied the high-speed cutting technology processing electrode to raise the electric spark machining efficiency to play the very major role. The high-speed cutting electrode improved electrode's surface quality and the precision, reduced the following working process.3) fast sample workpiece manufacture. Uses the high-speed cutting processing efficiencyhigh characteristic, may use in processing the plastic and the aluminum alloy model. After the CAD design produces the 3D full-scale mockup fast, is higher than the fast prototype manufacture efficiency, the quality is good.(4) mold's fast repair. The mold often needs to repair in the use process, lengthens the service life, in the past was mainly completes depending on the electrical finishing, now uses the high speed processing to be possible to complete this work quickly, moreover might use the original NC procedure, did not need to establish.5 ConclusionThe high-speed cutting processing uses the high cutting velocity and the feed rate, the small radial direction and the axial depth of cut, the cutting force is small, the processing surface roughness is very small, cutting tool life enhancement; With the high-speed cutting processing way substitution tradition processing way processing mold, might omit the electric spark machining and rub manually repairs, raised the productivity which the mold processed, reduced the production cost, reduced the processing cycle; When research high-speed cutting processing, must unify closely with the high-speed cutting processing technology, realizes the high efficiency, the high accuracy truly and the redundant reliable goal.The high-speed cutting process technology is the advanced technique of manufacture, has the broad application prospect. Replaces EDM with the high-speed cutting processing (or majority of replaces) speeds up the mold development speed, realizes the craft update major step. The promoted application high-speed cutting process technology applies in the mold manufacturing industry, not only may enhance the machine-finishing large scale the efficiency, the quality, reduces the cost, moreover may lead a series of high technology and new technology industry the development. Therefore, current strengthens the high-speed cutting technology the basic research, establishes the high-speed cutting database, the high-speed cutting safety work standard, enhances the engine bed and tool profession development innovation ability, speeds up the high-speed cutting cutting tool system, the high-speed cutting engine bed system's research development and the industrial production, already was the urgent matter.References[1] A.C. Low, J.W. Kyle, Grinding tool technology recent development, The Mechanical Engineers Association, London, 1986. High-speed cutting and grinding tool manufacture[2] K.L. Johnson, High-speed cutting and grinding tool manufacture, Cambridge University Press, Cambridge, 1985.[3] W.DMay, E.L. Morris, D. Atack, new using of Cutting technology, Applied Physics 30 (1959) 1713–1724.[4] S.C. Hunter, Grinding tool manufacture, Applied Mechanics 28 (1961) 611–617.[5] G. Lodewijks, Dynamics of Belt Systems, Thesis, Delft University of Technology, Delft, 1995.[6] A.N. Gent, High-speed cutting outline, Carl Hanser Verslag, 2001.中文翻译高速切削加工在模具制造中的新应用摘要当前模具应用广泛，与之相关的模具制造技术也有了很大的发展。
外文翻译-冲压模具设计成型方面
英文翻译4 Sheet metal forming and blanking4.1 Principles of die manufacture4.1.1 Classification of diesIn metalforming,the geometry of the workpiece is established entirely or partially by the geometry of the die.In contrast to machining processes,ignificantly greater forces are necessary in forming.Due to the complexity of the parts,forming is often not carried out in a single operation.Depending on the geometry of the part,production is carried out in several operational steps via one or several production processes such as forming or blanking.One operation can also include several processes simultaneously(cf.Sect.2.1.4).During the design phase,the necessary manufacturing methods as well as the sequence and number of production steps are established in a processing plan(Fig.4.1.1).In this plan,the availability of machines,the planned production volumes of the part and other boundary conditions are taken into account.The aim is to minimize the number of dies to be used while keeping up a high level of operational reliability.The parts are greatly simplified right from their design stage by close collaboration between the Part Design and Production Departments in order to enable several forming and related blanking processes to be carried out in one forming station.Obviously,the more operations which are integrated into a single die,the more complex the structure of the die becomes.The consequences are higher costs,a decrease in output and a lower reliability.Fig.4.1.1 Production steps for the manufacture of an oil sumpTypes of diesThe type of die and the closely related transportation of the part between dies is determined in accordance with the forming procedure,the size of the part in question and the production volume of parts to be produced.The production of large sheet metal parts is carried out almost exclusively using single sets of dies.Typical parts can be found in automotive manufacture,the domestic appliance industry and radiator production.Suitable transfer systems,for example vacuum suction systems,allow the installation of double-action dies in a sufficiently large mounting area.In this way,for example,the right and left doors of a car can be formed jointly in one working stroke(cf.Fig.4.4.34).Large size single dies are installed in large presses.The transportation of the parts from one forming station to another is carried out mechanically.In a press line with single presses installed one behind the other,feeders or robots can be used(cf.Fig.4.4.20 to 4.4.22),whilst in large-panel transfer presses,systems equipped with gripper rails(cf.Fig.4.4.29)or crossbar suction systems(cf.Fig.4.4.34)are used to transfer the parts.Transfer dies are used for the production of high volumes of smaller and medium size parts(Fig.4.1.2).They consist of several single dies,which are mounted on a common base plate.The sheet metal is fed through mostly in blank form and also transported individually from die to die.If this part transportation is automated,the press is called a transfer press.The largest transfer dies are used together with single dies in large-panel transferpresses(cf.Fig.4.4.32).In progressive dies,also known as progressive blanking dies,sheet metal parts are blanked in several stages;generally speaking no actual forming operation takes place.The sheet metal is fed from a coil or in the form of metal ing an appropriate arrangement of the blanks within the available width of the sheet metal,an optimal material usage is ensured(cf.Fig.4.5.2 to 4.5.5). The workpiece remains fixed to the strip skeleton up until the laFig.4.1.2 Transfer die set for the production of an automatic transmission for an automotive application-st operation.The parts are transferred when the entire strip is shifted further in the work flow direction after the blanking operation.The length of the shift is equal to the center line spacing of the dies and it is also called the step width.Side shears,very precise feeding devices or pilot pins ensure feed-related part accuracy.In the final production operation,the finished part,i.e.the last part in the sequence,is disconnected from the skeleton.A field of application for progressive blanking tools is,for example,in the production of metal rotors or stator blanks for electric motors(cf.Fig.4.6.11 and 4.6.20).In progressive compound dies smaller formed parts are produced in several sequential operations.In contrast to progressive dies,not only blanking but also forming operations are performed.However, the workpiece also remains in the skeleton up to the last operation(Fig.4.1.3 and cf.Fig.4.7.2).Due to the height of the parts,the metal strip must be raised up,generally using lifting edges or similar lifting devices in order to allow the strip metal to be transported mechanically.Pressed metal parts which cannot be produced within a metal strip because of their geometrical dimensions are alternatively produced on transfer sets.Fig.4.1.3 Reinforcing part of a car produced in a strip by a compound die setNext to the dies already mentioned,a series of special dies are available for special individual applications.These dies are,as a rule,used separately.Special operations make it possible,however,for special dies to be integrated into an operational Sequence.Thus,for example,in flanging dies several metal parts can be joined together positively through the bending of certain metal sections(Fig.4.1.4and cf.Fig.2.1.34).During this operation reinforcing parts,glue or other components can be introduced.Other special dies locate special connecting elements directly into the press.Sorting and positioning elements,for example,bring stamping nuts synchronised with the press cycles into the correct position so that the punch heads can join them with the sheet metal part(Fig.4.1.5).If there is sufficient space available,forming and blanking operations can be carried out on the same die.Further examples include bending,collar-forming,stamping,fine blanking,wobble blanking and welding operations(cf.Fig.4.7.14 and4.7.15).Fig.4.1.4 A hemming dieFig.4.1.5 A pressed part with an integrated punched nut4.1.2 Die developmentTraditionally the business of die engineering has been influenced by the automotive industry.The following observations about the die development are mostly related to body panel die construction.Essential statements are,however,made in a fundamental context,so that they are applicable to all areas involved with the production of sheet-metal forming and blanking dies.Timing cycle for a mass produced car body panelUntil the end of the 1980s some car models were still being produced for six to eight years more or less unchanged or in slightly modified form.Today,however,production time cycles are set for only five years or less(Fig.4.1.6).Following the new different model policy,the demands ondie makers have also changed prehensive contracts of much greater scope such as Simultaneous Engineering(SE)contracts are becoming increasingly common.As a result,the die maker is often involved at the initial development phase of the metal part as well as in the planning phase for the production process.Therefore,a much broader involvement is established well before the actual die development is initiated.Fig.4.1.6 Time schedule for a mass produced car body panelThe timetable of an SE projectWithin the context of the production process for car body panels,only a minimal amount of time is allocated to allow for the manufacture of the dies.With large scale dies there is a run-up period of about 10 months in which design and die try-out are included.In complex SE projects,which have to be completed in 1.5 to 2 years,parallel tasks must be carried out.Furthermore,additional resources must be provided before and after delivery of the dies.These short periods call for pre-cise planning,specific know-how,available capacity and the use of the latest technological and communications systems.The timetable shows the individual activities during the manufacturing of the dies for the production of the sheet metal parts(Fig.4.1.7).The time phases for large scale dies are more or less similar so that this timetable can be considered to be valid in general.Data record and part drawingThe data record and the part drawing serve as the basis for all subsequent processing steps.They describe all the details of the parts to be produced. The information given in theFig.4.1.7 Timetable for an SE projectpart drawing includes: part identification,part numbering,sheet metal thickness,sheet metal quality,tolerances of the finished part etc.(cf.Fig.4.7.17).To avoid the production of physical models(master patterns),the CAD data should describe the geometry of the part completely by means of line,surface or volume models.As a general rule,high quality surface data with a completely filleted and closed surface geometry must be made available to all the participants in a project as early as possible.Process plan and draw developmentThe process plan,which means the operational sequence to be followed in the production of the sheet metal component,is developed from the data record of the finished part(cf.Fig.4.1.1).Already at this point in time,various boundary conditions must be taken into account:the sheet metal material,the press to be used,transfer of the parts into the press,the transportation of scrap materials,the undercuts as well as thesliding pin installations and their adjustment.The draw development,i.e.the computer aided design and layout of the blank holder area of the part in the first forming stage–if need bealso the second stage–,requires a process planner with considerable experience(Fig.4.1.8).In order to recognize and avoid problems in areas which are difficult to draw,it is necessary to manufacture a physical analysis model of the draw development.With this model,theforming conditions of the drawn part can be reviewed and final modifications introduced,which are eventually incorporated into the data record(Fig.4.1.9).This process is being replaced to some extent by intelligent simulation methods,throughwhich the potential defects of the formed component can be predicted and analysed interactively on the computer display.Die designAfter release of the process plan and draw development and the press,the design of the die can be started.As a rule,at this stage,the standards and manufacturing specifications required by the client must be considered.Thus,it is possible to obtain a unified die design and to consider the particular requests of the customer related to warehousing of standard,replacement and wear parts.Many dies need to be designed so that they can be installed in different types of presses.Dies are frequently installed both in a production press as well as in two different separate back-up presses.In this context,the layout of the die clamping elements,pressure pins and scrap disposal channels on different presses must be taken into account.Furthermore,it must be noted that drawing dies working in a single-action press may be installed in a double-action press(cf.Sect.3.1.3 and Fig.4.1.16).Fig.4.1.8 CAD data record for a draw developmentIn the design and sizing of the die,it is particularly important to consider the freedom of movement of the gripper rail and the crossbar transfer elements(cf.Sect.4.1.6).These describe the relative movements between the components of the press transfer system and the die components during a complete press working stroke.The lifting movement of the press slide,the opening and closing movements of the gripper rails and the lengthwise movement of the whole transfer are all superimposed.The dies are designed so that collisions are avoided and a minimum clearance of about 20 mm is set between all the moving parts.4 金属板料的成形及冲裁4. 模具制造原理4.1.1模具的分类在金属成形的过程中，工件的几何形状完全或部分建立在模具几何形状的基础上的。
冲压模具成型外文翻译参考文献
冲压模具成型外文翻译参考文献(文档含中英文对照即英文原文和中文翻译)4 Sheet metal forming and blanking4.1 Principles of die manufacture4.1.1 Classification of diesIn metalforming,the geometry of the workpiece is established entirely or partially by the geometry of the die.In contrast to machining processes,ignificantly greater forces are necessary in forming.Due to the complexity of the parts,forming is often not carried out in a single operation.Depending on the geometry of the part,production is carried out in several operational steps via one or several production processes such as forming or blanking.One operation can also include several processes simultaneously(cf.Sect.2.1.4).During the design phase,the necessary manufacturing methods as well as the sequence and number of production steps are established in a processing plan(Fig.4.1.1).In this plan,theavailability of machines,the planned production volumes of the part and other boundary conditions are taken into account.The aim is to minimize the number of dies to be used while keeping up a high level of operational reliability.The parts are greatly simplified right from their design stage by close collaboration between the Part Design and Production Departments in order to enable several forming and related blanking processes to be carried out in one forming station.Obviously,the more operations which are integrated into a single die,the more complex the structure of the die becomes.The consequences are higher costs,a decrease in output and a lower reliability.Fig.4.1.1 Production steps for the manufacture of an oil sumpTypes of diesThe type of die and the closely related transportation of the part between dies is determined in accordance with the forming procedure,the size of the part in question and the production volume of parts to be produced.The production of large sheet metal parts is carried out almost exclusively using single sets of dies.Typical parts can be found in automotive manufacture,the domestic appliance industry and radiator production.Suitable transfer systems,for example vacuum suction systems,allow the installation of double-action dies in a sufficiently large mounting area.In this way,for example,the right and left doors of a car can be formed jointly in one working stroke(cf.Fig.4.4.34).Large size single dies are installed in large presses.The transportation of the parts from oneforming station to another is carried out mechanically.In a press line with single presses installed one behind the other,feeders or robots can be used(cf.Fig.4.4.20 to 4.4.22),whilst in large-panel transfer presses,systems equipped with gripper rails(cf.Fig.4.4.29)or crossbar suction systems(cf.Fig.4.4.34)are used to transfer the parts.Transfer dies are used for the production of high volumes of smaller and medium size parts(Fig.4.1.2).They consist of several single dies,which are mounted on a common base plate.The sheet metal is fed through mostly in blank form and also transported individually from die to die.If this part transportation is automated,the press is called a transfer press.The largest transfer dies are used together with single dies in large-panel transfer presses(cf.Fig.4.4.32).In progressive dies,also known as progressive blanking dies,sheet metal parts are blanked in several stages;generally speaking no actual forming operation takes place.The sheet metal is fed from a coil or in the form of metal ing an appropriate arrangement of the blanks within the available width of the sheet metal,an optimal material usage is ensured(cf.Fig.4.5.2 to 4.5.5). The workpiece remains fixed to the strip skeleton up until the laFig.4.1.2 Transfer die set for the production of an automatic transmission for an automotive application-st operation.The parts are transferred when the entire strip is shifted further in the work flow direction after the blanking operation.The length of the shift is equal to the center line spacing of the dies and it is also called the step width.Side shears,very precise feeding devices or pilot pins ensure feed-related part accuracy.In the final production operation,the finished part,i.e.the last part in the sequence,is disconnected from the skeleton.A field of application for progressive blanking tools is,for example,in the production of metal rotors or stator blanks for electric motors(cf.Fig.4.6.11 and 4.6.20).In progressive compound dies smaller formed parts are produced in several sequential operations.In contrast to progressive dies,not only blanking but also forming operations areperformed.However, the workpiece also remains in the skeleton up to the last operation(Fig.4.1.3 and cf.Fig.4.7.2).Due to the height of the parts,the metal strip must be raised up,generally using lifting edges or similar lifting devices in order to allow the strip metal to be transported mechanically.Pressed metal parts which cannot be produced within a metal strip because of their geometrical dimensions are alternatively produced on transfer sets.Fig.4.1.3 Reinforcing part of a car produced in a strip by a compound die setNext to the dies already mentioned,a series of special dies are available for special individual applications.These dies are,as a rule,used separately.Special operations make it possible,however,for special dies to be integrated into an operational Sequence.Thus,for example,in flanging dies several metal parts can be joined together positively through the bending of certain metal sections(Fig.4.1.4and cf.Fig.2.1.34).During this operation reinforcing parts,glue or other components can be introduced.Other special dies locate special connecting elements directly into the press.Sorting and positioning elements,for example,bring stamping nuts synchronised with the press cycles into the correct position so that the punch heads can join them with the sheet metal part(Fig.4.1.5).If there is sufficient space available,forming and blanking operations can be carried out on the same die.Further examples include bending,collar-forming,stamping,fine blanking,wobble blanking and welding operations(cf.Fig.4.7.14 and4.7.15).Fig.4.1.4 A hemming dieFig.4.1.5 A pressed part with an integrated punched nut4.1.2 Die developmentTraditionally the business of die engineering has been influenced by the automotive industry.The following observations about the die development are mostly related to body panel die construction.Essential statements are,however,made in a fundamental context,so that they are applicable to all areas involved with the production of sheet-metal forming and blanking dies.Timing cycle for a mass produced car body panelUntil the end of the 1980s some car models were still being produced for six to eight years more or less unchanged or in slightly modified form.Today,however,production time cycles are set for only five years or less(Fig.4.1.6).Following the new different model policy,the demands ondie makers have also changed prehensive contracts of much greater scope such as Simultaneous Engineering(SE)contracts are becoming increasingly common.As a result,the die maker is often involved at the initial development phase of the metal part as well as in the planning phase for the production process.Therefore,a muchbroader involvement is established well before the actual die development is initiated.Fig.4.1.6 Time schedule for a mass produced car body panelThe timetable of an SE projectWithin the context of the production process for car body panels,only a minimal amount of time is allocated to allow for the manufacture of the dies.With large scale dies there is a run-up period of about 10 months in which design and die try-out are included.In complex SE projects,which have to be completed in 1.5 to 2 years,parallel tasks must be carried out.Furthermore,additional resources must be provided before and after delivery of the dies.These short periods call for pre-cise planning,specific know-how,available capacity and the use of the latest technological and communications systems.The timetable shows the individual activities during the manufacturing of the dies for the production of the sheet metal parts(Fig.4.1.7).The time phases for large scale dies are more or less similar so that this timetable can be considered to be valid in general.Data record and part drawingThe data record and the part drawing serve as the basis for all subsequent processing steps.They describe all the details of the parts to be produced. The information given in theFig.4.1.7 Timetable for an SE projectpart drawing includes: part identification,part numbering,sheet metal thickness,sheet metal quality,tolerances of the finished part etc.(cf.Fig.4.7.17).To avoid the production of physical models(master patterns),the CAD data should describe the geometry of the part completely by means of line,surface or volume models.As a general rule,high quality surface data with a completely filleted and closed surface geometry must be made available to all the participants in a project as early as possible.Process plan and draw developmentThe process plan,which means the operational sequence to be followed in the production of the sheet metal component,is developed from the data record of the finished part(cf.Fig.4.1.1).Already at this point in time,various boundary conditions must be taken into account:the sheet metal material,the press to be used,transfer of the parts into the press,the transportation of scrap materials,the undercuts as well as thesliding pin installations and their adjustment.The draw development,i.e.the computer aided design and layout of the blank holder area of the part in the first forming stage–if need bealso the second stage–,requires a process planner with considerable experience(Fig.4.1.8).In order to recognize and avoid problems in areas which are difficult to draw,it is necessary to manufacture a physical analysis model of the draw development.With this model,theforming conditions of the drawn part can be reviewed and final modifications introduced,which are eventually incorporated into the data record(Fig.4.1.9).This process is being replaced to some extent by intelligent simulation methods,through which the potential defects of the formed component can be predicted and analysed interactively on the computer display.Die designAfter release of the process plan and draw development and the press,the design of the die can be started.As a rule,at this stage,the standards and manufacturing specifications required by the client must be considered.Thus,it is possible to obtain a unified die design and to consider the particular requests of the customer related to warehousing of standard,replacement and wear parts.Many dies need to be designed so that they can be installed in different types of presses.Dies are frequently installed both in a production press as well as in two different separate back-up presses.In this context,the layout of the die clamping elements,pressure pins and scrap disposal channels on different presses must be taken into account.Furthermore,it must be noted that drawing dies working in a single-action press may be installed in a double-action press(cf.Sect.3.1.3 and Fig.4.1.16).Fig.4.1.8 CAD data record for a draw developmentIn the design and sizing of the die,it is particularly important to consider the freedom of movement of the gripper rail and the crossbar transfer elements(cf.Sect.4.1.6).These describe the relative movements between the components of the press transfer system and the die components during a complete press working stroke.The lifting movement of the press slide,the opening and closing movements of the gripper rails and the lengthwise movement of the whole transfer are all superimposed.The dies are designed so that collisions are avoided and a minimum clearance of about 20 mm is set between all the moving parts.4 金属板料的成形及冲裁4. 模具制造原理4.1.1模具的分类在金属成形的过程中，工件的几何形状完全或部分建立在模具几何形状的基础上的。
(完整)冲压模具外文文献
Progressive DieProgressive die has the following advantages1） Class into the module is multi-process dies, in a mold can include punching， bending，forming and drawing a variety of multi—pass process， with a higher than the compound die labor productivity， but also can produce quite complex stampings;2) Progressive Die Operation Security， because staff do not have to enter the danger zone；3） Class Progressive Die Design, The process can be distributed。
Do not focus on one station , there is no Compound Dies "Minimum wall thickness" problem. Therefore relatively high mold strength, longer life expectancy。
4) Progressive Die Easy Automation That is easy to Automatic feeding ,Autoout of parts Automatic lamination；5） Class Progressive die can be High—speed press production， because the workpiece can be directly down the drain and waste；6） Use Class Progressive die can be Reduce the presses， semi-finished products to reduce transport. Workshop area and storage space can be greatly reduced. Progressive Dies The disadvantage is that complex structure， manufacturing of high precision， long life cycle and high costs. Because of progressive die is a To the workpiece, the shape of successive out, each punch has a positioning error， is more difficult to maintain stability in the workpiece, the relative position of the one—off appearance。
冲压模具专业词汇中英文翻译
冲压模具词汇Counter bored hole 沉孔Chamfer 倒斜角Fillet 倒圆角padding block垫块stepping bar垫条upper die base上模座lower die base下模座upper supporting blank上承板upper padding plate blank上垫板spare dies模具备品spring 弹簧bolt螺栓document folder活页夹file folder资料夹to put file in order整理资料spare tools location手工备品仓first count初盘人first check初盘复棹人second count 复盘人second check复盘复核人equipment设备waste materials废料work in progress product在制品casing = containerization装箱quantity of physical inventory second count 复盘点数量Quantity of customs count 会计师盘,点数量the first page第一联filed by accounting department for reference会计部存查end-user/using unit(department)使用单位Summary of year-end physical inventory bills 年终盘点截止单据汇总表bill name单据名称This sheet and physical inventory list will be sent to accounting department together (Those of NHK will be sent to financial department)本表请与盘点清册一起送会计部－(NHK厂区送财会部)Application status records of year-end physical inventory List and physical inventory card 年终盘点卡与清册使用－状况明细表blank and waste sheet NO. 空白与作废单号plate电镀mold成型material for engineering mold testing工程试模材料not included in physical inventory不列入盘点sample样品incoming material to be inspected进货待验description品名steel/rolled steel钢材material statistics sheet 物料统计明细表meeting minutes会议记录meeting type 会别distribution department分发单位location地点chairman主席present members出席人员subject主题conclusion结论decision items决议事项responsible department负责单位pre-fixed finishing date预定完成日approved by / checked by / prepared by核准/审核/承办PCE assembly production schedule sheetPCE组装厂生产排配表model机钟work order工令revision版次remark备注production control confirmation生产确认checked by初审approved by核准department部门Stock age analysis sheet 库存货龄分析表on-hand inventory现有库存available material良品可使用obsolete material良品已呆滞to be inspected or reworked 待验或重工total合计cause description原因说明part number/ P/N 料号type形态item/group/class类别quality品质prepared by制表notes说明year-end physical inventory difference analysis sheet 年终盘点差异分析表physical inventory盘点数量physical count quantity帐面数量difference quantity差异量cause analysis原因分析raw materials原料materials物料finished product成品semi-finished product半成品packing materials包材good product/accepted goods/ accepted parts/good parts良品defective product/non-good parts不良品disposed goods处理品warehouse/hub仓库on way location在途仓oversea location海外仓spare parts physical inventory list备品盘点清单spare molds location模具备品仓skid/pallet栈板tox machine自铆机wire EDM线割EDM放电机coil stock卷料sheet stock片料tolerance工差score=groove压线cam block滑块pilot导正筒trim剪外边pierce剪内边drag form压锻差pocket for the punch head挂钩槽slug hole废料孔feature die公母模expansion dwg展开图radius半径shim(wedge)楔子torch-flame cut火焰切割set screw止付螺丝form block折刀stop pin定位销round pierce punch=die button圆冲子shape punch=die insert异形子stock locater block定位块under cut=scrap chopper清角active plate活动板baffle plate挡块cover plate盖板male die公模female die母模groove punch压线冲子air-cushion eject-rod气垫顶杆spring-box eject-plate弹簧箱顶板bushing block衬套insert 入块club car高尔夫球车capability能力parameter参数factor系数phosphate皮膜化成viscosity涂料粘度alkalidipping脱脂（degrease）main manifold主集流脉bezel斜视规blanking穿落模dejecting顶固模demagnetization去磁;消磁high-speed transmission高速传递heat dissipation热传rack上料degrease脱脂rinse水洗alkaline etch龄咬desmut剥黑膜D.I. rinse纯水次Chromate铬酸处理Anodize阳性处理seal封孔revision版次part number/P/N料号good products良品scraped products报放心品defective products不良品finished products成品disposed products处理品barcode条形码flow chart流程窗体assembly组装stamping冲压molding成型 spare parts=buffer备品coordinate坐标dismantle the die折模auxiliary function辅助功能poly-line多义线heater band 加热片thermocouple热电偶sand blasting喷沙grit 砂砾deducting machine除锈机degate打浇口dryer烘干机induction感应induction light感应光response=reaction=interaction感应ram连杆edge finder巡边器concave 凹convex凸short射料不足nick缺口speck瑕疪shine亮班splay 银纹gas mark焦痕delamination起鳞cold slug冷块blush 导色gouge沟槽;凿槽satin texture段面咬花witness line证示线patent专利grit沙砾granule=peuet=grain细粒grit maker抽粒机cushion缓冲magnalium镁铝合金magnesium镁金metal plate钣金lathe车mill锉plane刨grind磨drill钻boring镗blinster气泡fillet镶;嵌边through-hole form通孔形式voller pin formality滚针形式cam driver铡楔shank摸柄crank shaft曲柄轴angle offset角度偏差velocity速度production tempo生产进度现状torque扭矩spline=the multiple keys花键quenching淬火tempering回火annealing退火carbonization碳化alloy合金tungsten high speed steel钨高速的moly high speed steel钼高速的organic solvent有机溶剂bracket小磁导liaison联络单volatile挥发性resistance电阻ion离子titrator滴定仪beacon警示灯coolant冷却液crusher破碎机plain die简易模pierce die冲孔模forming die成型模progressive die连续模gang dies复合模shearing die剪边模riveting die铆合模pierce冲孔forming成型(抽凸,冲凸) draw hole抽孔bending折弯trim切边emboss凸点dome凸圆semi-shearing半剪stamp mark冲记号deburr or coin压毛边punch riveting冲压铆合side stretch侧冲压平reel stretch卷圆压平groove压线blanking下料stamp letter冲字(料号) shearing剪断tick-mark nearside正面压印tick-mark farside反面压印extension dwg展开图procedure dwg工程图die structure dwg模具结构图material材质material thickness料片厚度factor系数upward向上downward向下press specification冲床规格die height range适用模高die height闭模高度burr毛边gap间隙weight重量total wt.总重量punch wt.上模重量inner guiding post内导柱inner hexagon screw内六角螺钉dowel pin固定销coil spring弹簧lifter pin顶料销eq-height sleeves=spool等高套筒pin销lifter guide pin浮升导料销guide pin导正销wire spring圆线弹簧outer guiding post外导柱stop screw止付螺丝located pin定位销outer bush外导套top plate上托板（顶板）top block上垫脚punch set上模座punch pad上垫板punch holder上夹板stripper pad脱料背板up stripper上脱料板male die公模(凸模)feature die公母模female die母模(凹模)upper plate上模板lower plate下模板die pad下垫板die holder下夹板die set下模座bottom block下垫脚bottom plate下托板(底板) stripping plate内外打(脱料板) outer stripper外脱料板inner stripper内脱料板lower stripper下脱料板punch冲头insert入块(嵌入件)deburring punch压毛边冲子groove punch压线冲子stamped punch字模冲子round punch圆冲子special shape punch异形冲子bending block折刀roller滚轴baffle plate挡块located block定位块supporting block for location 定位支承块air cushion plate气垫板air-cushion eject-rod气垫顶杆trimming punch切边冲子stiffening rib punch = stinger 加强筋冲子ribbon punch压筋冲子reel-stretch punch卷圆压平冲子guide plate定位板plain die简易模pierce die冲孔模forming die成型模progressive die连续模gang dies复合模shearing die剪边模riveting die铆合模pierce冲孔forming成型(抽凸,冲凸)draw hole抽孔bending折弯trim切边emboss凸点dome凸圆semi-shearing半剪stamp mark冲记号deburr or coin压毛边punch riveting冲压铆合side stretch侧冲压平reel stretch卷圆压平groove压线blanking下料stamp letter冲字(料号) shearing剪断tick-mark nearside正面压印tick-mark farside反面压印extension dwg展开图procedure dwg工程图die structure dwg模具结构图material材质material thickness料片厚度factor系数upward向上downward向下press specification冲床规格die height range适用模高die height闭模高度burr毛边gap间隙weight重量total wt.总重量punch wt.上模重量air vent vale 通气阀anchor pin 锚梢angular pin 角梢baffle 调节阻板angular pin 倾斜梢baffle plate 折流档板ball button 球塞套ball plunger 定位球塞ball slider 球塞滑块binder plate 压板blank holder 防皱压板blanking die 落料冲头bolster 上下模板bottom board 浇注底板bolster 垫板bottom plate 下固定板bracket 托架bumper block 缓冲块buster 堵口casting ladle 浇注包casting lug 铸耳cavity 模穴(模仁)cavity retainer plate 模穴托板center pin 中心梢clamping block 锁定块coil spring 螺旋弹cold punched nut 冷冲螺母cooling spiral 螺旋冷却栓core 心型core pin 心型梢cotter 开口梢cross 十字接头cushion pin 缓冲梢diaphragm gate 盘形浇口die approach 模头料道die bed 型底die block 块形模体die body 铸模座die bush 合模衬套die button 冲模母模全球模具网die clamper 夹模器die fastener 模具固定用零件die holder 母模固定板die lip 模唇die plate 冲模板die set 冲压模座direct gate 直接浇口dog chuck 爪牙夹头dowel 定位梢dowel hole 导套孔dowel pin 合模梢dozzle 辅助浇口dowel pin 定位梢draft 拔模锥度draw bead 张力调整杆drive bearing 传动轴承ejection pad 顶出衬垫ejector 脱模器ejector guide pin 顶出导梢ejector leader busher 顶出导梢衬套ejector pad 顶出垫ejector pin 顶出梢ejector plate 顶出板ejector rod 顶出杆ejector sleeve 顶出衬套ejector valve 顶出阀eye bolt 环首螺栓filling core 椿入蕊film gate 薄膜形浇口finger pin 指形梢finish machined plate 角形模板finish machined round plate 圆形模板fixed bolster plate 固定侧模板flanged pin 带凸缘?flash gate 毛边形浇口flask 上箱floating punch 浮动冲头gate 浇口gate land 浇口面gib 凹形拉紧goose neck 鹅颈管guide bushing 引导衬套guide pin 导梢guide post 引导柱guide plate 导板guide rail 导轨head punch 顶冲头headless punch 直柄冲头heavily tapered solid 整体模蕊盒hose nippler 管接头impact damper 缓冲器injection ram 压射柱塞inlay busher 嵌入衬套inner plunger 内柱塞inner punch 内冲头insert 嵌件insert pin 嵌件梢king pin 转向梢king pin bush 主梢衬套knockout bar 脱模杵land 合模平坦面land area 合模面leader busher 导梢衬套lifting pin 起模顶?lining 内衬locating center punch 定位中心冲头locating pilot pin 定位导梢locating ring 定位环lock block 压块locking block 定位块locking plate 定位板loose bush 活动衬套making die 打印冲子manifold block 歧管档块汽车英语first gear 一档second gear 二档reverse 倒车档two-stroke engine 二冲程发动机diesel 柴油机limousine 豪华轿车drophead 活动车篷汽车 (美作:convertible) racing car 赛车saloon 轿车 (美作:sedan)wecker, beat-up car, jalopy 老爷车notchback 客货两用车four-wheel drive 四轮驱动front-wheel drive 前轮驱动trailer 拖车truck 卡车compact car 小型汽车light-van 小型货车front wheel 前轮rear wheel 后轮tread 轮距chassis 底盘bodywork, body 车身rear window 后窗玻璃windscreen 挡风玻璃 (美作:windshield)windscreen wiper 风档刮水器,风档雨雪刷 (美作:windshield wiper) fender, wing, mudguard 挡泥板radiator grille 水箱wing mirror 后视镜bonnet 发动机盖 (美作:hood)boot 行李箱 (美作:trunk)roof rack, luggage rack 行李架license plate, number plate 车号牌wing 前翼子板hubcap 轮毂罩bumper 保险杠front blinker 前信号灯taillight, tail lamp 尾灯backup light, reversing light 倒车灯stoplight, stop lamp 刹车灯rear blinker 转弯指示灯trunk, boot 行李箱bumper 保险杠tailpipe 排气管back seat, rear seat 后座driver's seat, driving seat 驾驶席passenger seat 旅客席steering wheel, wheel 方向盘rear-view mirror, driving mirror 后视镜horn, hooter 喇叭choke 熄火装置gear stick, gear change 变速杆 (美作:gearshift) gearbox 变速箱starter, self-starter 起动器,起动钮brake pedal 刹车踏板clutch pedal 离合器踏板hand brake 手制动器foot brake 脚制动器dashboard 仪表板milometer 里程表speedometer, clock 速度表transmission 传动piston 活塞radiator 散热器fan belt 风扇皮带shaft 传动轴inner tube 内胎drain tap 排气阀门silencer 消音器 (美作:muffler)tank 油箱overflow 溢流孔valve 阀门exhaust pipe 排气管spare wheel 备胎,备用轮胎carburettor 汽化器 (美化:carburetor) electrical system, wiring 电气系统lights 灯光headlight 大灯,头灯dipped headlight 近光灯rear lights 尾灯sidelights, parking lights 位置灯,边灯direction indicator 方向标,转向标indicator, blinker 方向指示灯sparking plug 火花塞 (美作:spark plug) (spare) battery (备用)蓄电池to accelerate 加速to brake 制动,刹车to engage the clutch 接上离合器to declutch 分开离合器to stall 发动机停转to change gear 变速to decelerate 减速top speed 最高速度speed limit 速度限制to park 停车to switch off the motor 熄火模具工程常用词汇模具钢材alloy tool steel 合金工具钢 aluminium alloy 铝合金钢 bearing alloy 轴承合金 blister steel 浸碳钢 bonderized steel sheet 邦德防蚀钢板carbon tool steel 碳素工具钢clad sheet 被覆板clod work die steel 冷锻模用钢emery 金钢砂 ferrostatic pressure 钢铁水静压力forging die steel 锻造模用钢galvanized steel sheet 镀锌铁板hard alloy steel 超硬合金钢high speed tool steel 高速度工具钢hot work die steel 热锻模用钢low alloy tool steel 特殊工具钢low manganese casting steel 低锰铸钢marging steel 马式体高强度热处理钢martrix alloy 马特里斯合金meehanite cast iron 米汉纳铸钢meehanite metal 米汉纳铁merchant iron 市售钢材molybdenum high speed steel钼系高速钢 molybdenum steel钼钢 nickel chromium steel 镍铬钢prehardened steel 顶硬钢silicon steel sheet 硅钢板stainless steel 不锈钢tin plated steel sheet 镀锡铁板tough pitch copper 韧铜troostite 吐粒散铁tungsten steel 钨钢vinyl tapped steel sheet 塑料覆面钢板四、模具零件：mold components三板模：3-plate mold二板模：2-plate mold边钉/导边：leader pin/guide pin边司/导套：bushing/guide bushing中托司：shoulder guide bushing中托边L：guide pin顶针板：ejector retainner plate托板：support plate螺丝： screw管钉：dowel pin开模槽：ply bar scot内模管位：core/cavity inter-lock顶针：ejector pin司筒：ejector sleeve司筒针：ejector pin推板：stripper plate缩呵：movable core,return core core puller 扣机（尼龙拉勾）：nylon latch lock斜顶：lifter模胚（架）： mold base上内模：cavity insert下内模：core insert行位（滑块）： slide镶件：insert压座/斜鸡：wedge耐磨板/油板：wedge wear plate压条：plate撑头: support pillar唧嘴： sprue bushing挡板：stop plate定位圈：locating ring锁扣：latch扣鸡：parting lock set推杆：push bar栓打螺丝：S.H.S.B顶板：eracuretun活动臂：lever arm分流锥：spure sperader水口司:bush垃圾钉：stop pin隔片：buffle弹弓柱：spring rod弹弓:die spring中托司：ejector guide bush中托边：ejector guide pin镶针：pin销子：dowel pin波子弹弓：ball catch喉塞: pipe plug锁模块：lock plate斜顶：angle from pin斜顶杆：angle ejector rod尼龙拉勾：parting locks活动臂：lever arm复位键、提前回杆：early return bar气阀：valves斜导边：angle pin术语：terms承压平面平衡：parting surface support balance模排气：parting line venting回针碰料位：return pin and cavity interference模总高超出啤机规格：mold base shut hight顶针碰运水：water line interferes withejector pin料位出上/下模：part from cavith (core) side模胚原身出料位：cavity direct cut on A-plate,core direct cut on B-plate. 不准用镶件： Do not use (core/cavity) insert用铍铜做镶件： use beryllium copper insert初步（正式）模图设计：preliinary (final) mold design反呵：reverse core弹弓压缩量：spring compressed length稳定性好：good stability,stable强度不够：insufficient rigidity均匀冷却：even cooling扣模：sticking热膨胀：thero expansion公差：tolorance铜公(电极）：copper electrode模具工程常用词汇die 模具 die shoe 模瓦figure file, chart file图档cutting die, blanking die冲模progressive die, follow (-on)die 连续模compound die复合模punched hole冲孔 panel board镶块to cutedges=side cut=side scrap切边to bending折弯to pull, to stretch拉伸Line streching, line pulling线拉伸engraving, to engrave刻印upsiding down edges翻边to stake铆合design modification设计变化 die block模块folded block折弯块sliding block滑块location pin定位销lifting pin顶料销die plate, front board模板padding block垫块stepping bar垫条upper die base上模lower die base下模座upper supporting blank上承板upper padding plate blank上垫板spare dies模具备品spring 弹簧 bolt螺栓plate电镀mold成型material for engineering mold testing工程试模材料not included in physical inventory不列入盘点incoming material to be inspected进货待验PCE assembly production schedule sheet PCE组装厂生产排配表model机锺work order工令revision版次production control confirmation生产确认checked by初审approved by核准stock age analysis sheet 库存货龄分析表on-hand inventory现有库存available material良品可使用obsolete material良品已呆滞to be inspected or reworked 待验或重工cause description原因说明part number/ P/N 料号item/group/class类别prepared by制year-end physical inventory difference analysis sheet 年终盘点差异分析表physical inventory盘点数量physical count quantity帐面数量difference quantity差异good product/accepted goods/ accepted parts/good parts良品defective product/non-good parts不良品disposed goods处理品on way location在途仓oversea location海外仓spare parts physical inventory list备品盘点清单spare molds location模具备品仓skid/pallet栈板tox machine自铆机wire EDM线割 EDM放电机coil stock卷料sheet stock片料tolerance工差score=groove压线cam block滑块pilot导正筒trim剪外边pierce剪内边drag form压锻差pocket for the punch head挂钩槽slug hole废料孔feature die公母模expansion dwg展开图radius半径shim(wedge)楔子torch-flame cut火焰切割set screw止付螺丝form block折刀stop pin定位销round pierce punch=die button圆冲子shape punch=die insert异形子stock locater block定位块under cut=scrap chopper清角active plate活动板baffle plate挡块cover plate盖板male die公模female die母模groove punch压线冲子air-cushion eject-rod气垫顶杆spring-box eject-plate弹簧箱顶板bushing block衬套insert 入块capability能力parameter参数 factor系数phosphate皮膜化成viscosity涂料粘度alkalidipping脱脂main manifold主集流脉bezel斜视规blanking穿落模dejecting顶固模demagnetization去磁;消磁high-speed transmission高速传递heat dissipation热传rack上料degrease脱脂rinse水洗alkaline etch龄咬 desmut剥黑膜 D.I. rinse纯水次 Chromate铬酸处理 Anodize阳性处理 seal封孔revision版次 part number/P/N料号 good products良品 scraped products报放心品 defective products不良品finished products成品 disposed products处理品 barcode条码 flow chart流程表单 assembly组装 stamping冲压molding成型 spare parts=buffer备品 coordinate座标 dismantle the die折模 auxiliary fuction辅助功能 poly-line 多义线 heater band 加热片 thermocouple热电偶 sand blasting喷沙 grit 砂砾 derusting machine除锈机 degate打浇口 dryer烘干机 induction感应 induction light感应光 response=reaction=interaction感应 ram连杆 edge finder 巡边器 concave凸 convex凹 short射料不足 nick缺口 speck瑕疵 shine亮班 splay 银纹 gas mark焦痕 delamination 起鳞 cold slug冷块 blush 导色 gouge沟槽;凿槽 satin texture段面咬花 witness line证示线 patent专利 grit沙砾 granule=peuet=grain细粒 grit maker抽粒机cushion缓冲 magnalium镁铝合金 magnesium镁金 metal plate钣金 lathe车 mill锉 plane刨 grind磨drill铝 boring镗 blinster气泡 fillet镶;嵌边 through-hole form通孔形式 voller pin formality滚针形式 cam driver铡楔 shank摸柄 crank shaft曲柄 augular offset角度偏差 velocity速度 production tempo生产进度现状torque扭矩 spline=the multiple keys花键quenching淬火 tempering回火annealing退火 carbonization碳化 alloy合金 tungsten high speed steel钨高速的 moly high speed steel钼高速的 organic solvent有机溶剂 bracket小磁导 liaison联络单 volatile挥发性resistance电阻 ion离子titrator滴定仪 beacon警示灯 coolant冷却液 crusher破碎机模具工程类 plain die简易模 pierce die冲孔模forming die成型模 progressive die连续模 gang dies复合模 shearing die剪边模 riveting die铆合模 pierce冲孔forming成型(抽凸,冲凸) draw hole抽孔 bending折弯 trim切边 emboss凸点dome凸圆 semi-shearing半剪 stamp mark冲记号 deburr or coin压毛边 punch riveting冲压铆合 side stretch侧冲压平 reel stretch卷圆压平 groove压线 blanking下料 stamp letter冲字(料号) shearing剪断 tick-mark nearside正面压印 tick-mark farside反面压印冲压名称类 extension dwg展开图 procedure dwg工程图 die structure dwg模具结构图 material材质material thickness料片厚度press specification冲床规格 die height range适用模高 die height闭模高度 burr毛边 gap间隙 punch wt.上模重量。
毕业设计外文翻译_冲压模具设计成型方面
英文翻译4 Sheet metal forming and blanking4.1 Principles of die manufacture4.1.1 Classification of diesIn metalforming,the geometry of the workpiece is established entirely or partially by the geometry of the die.In contrast to machining processes,ignificantly greater forces are necessary in forming.Due to the complexity of the parts,forming is often not carried out in a single operation.Depending on the geometry of the part,production is carried out in several operational steps via one or several production processes such as forming or blanking.One operation can also include several processes simultaneously(cf.Sect.2.1.4).During the design phase,the necessary manufacturing methods as well as the sequence and number of production steps are established in a processing plan(Fig.4.1.1).In this plan,the availability of machines,the planned production volumes of the part and other boundary conditions are taken into account.The aim is to minimize the number of dies to be used while keeping up a high level of operational reliability.The parts are greatly simplified right from their design stage by close collaboration between the Part Design and Production Departments in order to enable several forming and related blanking processes to be carried out in one forming station.Obviously,the more operations which are integrated into a single die,the morecomplex the structure of the die becomes.The consequences are higher costs,a decrease in output and a lower reliability.Fig.4.1.1 Production steps for the manufacture of an oil sumpTypes of diesThe type of die and the closely related transportation of the part between dies is determined in accordance with the forming procedure,the size of the part in question and the production volume of parts to be produced.The production of large sheet metal parts is carried out almost exclusively using single sets of dies.Typical parts can be found in automotive manufacture,the domestic appliance industry and radiator production.Suitable transfer systems,for example vacuum suction systems,allow the installation of double-action dies in a sufficiently large mounting area.In this way,for example,the right and left doors of a car can be formed jointly in one working stroke(cf.Fig.4.4.34).Large size single dies are installed in large presses.The transportation of the parts from one forming station to another is carried out mechanically.In a press line with single presses installed one behind the other,feeders or robots can be used(cf.Fig.4.4.20 to 4.4.22),whilst in large-panel transfer presses,systems equipped with gripper rails(cf.Fig.4.4.29)or crossbar suction systems(cf.Fig.4.4.34)are used to transfer the parts.Transfer dies are used for the production of high volumes of smaller and mediumsize parts(Fig.4.1.2).They consist of several single dies,which are mounted on a common base plate.The sheet metal is fed through mostly in blank form and also transported individually from die to die.If this part transportation is automated,the press is called a transfer press.The largest transfer dies are used together with single dies in large-panel transfer presses(cf.Fig.4.4.32).In progressive dies,also known as progressive blanking dies,sheet metal parts are blanked in several stages;generally speaking no actual forming operation takes place.The sheet metal is fed from a coil or in the form of metal ing an appropriate arrangement of the blanks within the available width of the sheet metal,an optimal material usage is ensured(cf.Fig.4.5.2 to 4.5.5). The workpiece remains fixed to the strip skeleton up until the laFig.4.1.2 Transfer die set for the production of an automatic transmission for an automotive application-st operation.The parts are transferred when the entire strip is shifted further in the work flow direction after the blanking operation.The length of the shift is equal to the center line spacing of the dies and it is also called the step width.Side shears,very precise feeding devices or pilot pins ensure feed-related part accuracy.In the final production operation,the finished part,i.e.the last part in the sequence,is disconnected from the skeleton.A field of application for progressive blanking tools is,for example,in the production of metal rotors or stator blanks for electric motors(cf.Fig.4.6.11 and 4.6.20).In progressive compound dies smaller formed parts are produced in several sequential operations.In contrast to progressive dies,not only blanking but alsoforming operations are performed.However, the workpiece also remains in the skeleton up to the last operation(Fig.4.1.3 and cf.Fig.4.7.2).Due to the height of the parts,the metal strip must be raised up,generally using lifting edges or similar lifting devices in order to allow the strip metal to be transported mechanically.Pressed metal parts which cannot be produced within a metal strip because of their geometrical dimensions are alternatively produced on transfer sets.Fig.4.1.3 Reinforcing part of a car produced in a strip by a compound die setNext to the dies already mentioned,a series of special dies are available for special individual applications.These dies are,as a rule,used separately.Special operations make it possible,however,for special dies to be integrated into an operational Sequence.Thus,for example,in flanging dies several metal parts can be joined together positively through the bending of certain metal sections(Fig.4.1.4and cf.Fig.2.1.34).During this operation reinforcing parts,glue or other components can be introduced.Other special dies locate special connecting elements directly into the press.Sorting and positioning elements,for example,bring stamping nuts synchronised with the press cycles into the correct position so that the punch heads can join them with the sheet metal part(Fig.4.1.5).If there is sufficient space available,forming and blanking operations can be carried out on the same die.Further examples include bending,collar-forming,stamping,fine blanking,wobble blanking and welding operations(cf.Fig.4.7.14 and4.7.15).Fig.4.1.4 A hemming dieFig.4.1.5 A pressed part with an integrated punched nut4.1.2 Die developmentTraditionally the business of die engineering has been influenced by the automotive industry.The following observations about the die development are mostly related to body panel die construction.Essential statements are,however,made in a fundamental context,so that they are applicable to all areas involved with the production of sheet-metal forming and blanking dies.Timing cycle for a mass produced car body panelUntil the end of the 1980s some car models were still being produced for six to eight years more or less unchanged or in slightly modified form.Today,however,production time cycles are set for only five years or less(Fig.4.1.6).Following the new different model policy,the demands ondie makers have also changed prehensive contracts of much greater scope such as Simultaneous Engineering(SE)contracts are becoming increasinglycommon.As a result,the die maker is often involved at the initial development phase of the metal part as well as in the planning phase for the production process.Therefore,a much broader involvement is established well before the actual die development is initiated.Fig.4.1.6 Time schedule for a mass produced car body panelThe timetable of an SE projectWithin the context of the production process for car body panels,only a minimal amount of time is allocated to allow for the manufacture of the dies.With large scale dies there is a run-up period of about 10 months in which design and die try-out are included.In complex SE projects,which have to be completed in 1.5 to 2 years,parallel tasks must be carried out.Furthermore,additional resources must be provided beforeand after delivery of the dies.These short periods call for pre-cise planning,specific know-how,available capacity and the use of the latest technological and communications systems.The timetable shows the individual activities during the manufacturing of the dies for the production of the sheet metal parts(Fig.4.1.7).The time phases for large scale dies are more or less similar so that this timetable can be considered to be valid in general.Data record and part drawingThe data record and the part drawing serve as the basis for all subsequent processing steps.They describe all the details of the parts to be produced. The information given in theFig.4.1.7 Timetable for an SE projectpart drawing includes: part identification,part numbering,sheet metal thickness,sheet metal quality,tolerances of the finished part etc.(cf.Fig.4.7.17).To avoid the production of physical models(master patterns),the CAD data should describe the geometry of the part completely by means of line,surface or volume models.As a general rule,high quality surface data with a completely filleted and closed surface geometry must be made available to all the participants in a project as early as possible.Process plan and draw developmentThe process plan,which means the operational sequence to be followed in the production of the sheet metal component,is developed from the data record of the finished part(cf.Fig.4.1.1).Already at this point in time,various boundary conditionsmust be taken into account:the sheet metal material,the press to be used,transfer of the parts into the press,the transportation of scrap materials,the undercuts as well as the sliding pin installations and their adjustment.The draw development,i.e.the computer aided design and layout of the blank holder area of the part in the first forming stage–if need bealso the second stage–,requires a process planner with considerable experience(Fig.4.1.8).In order to recognize and avoid problems in areas which are difficult to draw,it is necessary to manufacture a physical analysis model of the draw development.With this model,the forming conditions of the drawn part can be reviewed and final modifications introduced,which are eventually incorporated into the data record(Fig.4.1.9).This process is being replaced to some extent by intelligent simulation methods,through which the potential defects of the formed component can be predicted and analysed interactively on the computer display.Die designAfter release of the process plan and draw development and the press,the design of the die can be started.As a rule,at this stage,the standards and manufacturing specifications required by the client must be considered.Thus,it is possible to obtain a unified die design and to consider the particular requests of the customer related to warehousing of standard,replacement and wear parts.Many dies need to be designed so that they can be installed in different types of presses.Dies are frequently installed both in a production press as well as in two different separate back-up presses.In this context,the layout of the die clamping elements,pressure pins and scrap disposal channels on different presses must be taken into account.Furthermore,it must be noted that drawing dies working in a single-action press may be installed in a double-action press(cf.Sect.3.1.3 and Fig.4.1.16).Fig.4.1.8 CAD data record for a draw developmentIn the design and sizing of the die,it is particularly important to consider the freedom of movement of the gripper rail and the crossbar transfer elements(cf.Sect.4.1.6).These describe the relative movements between the components of the press transfer system and the die components during a complete press working stroke.The lifting movement of the press slide,the opening and closing movements of the gripper rails and the lengthwise movement of the whole transfer are all superimposed.The dies are designed so that collisions are avoided and a minimum clearance of about 20 mm is set between all the moving parts.4 金属板料的成形及冲裁4. 模具制造原理4.1.1模具的分类在金属成形的过程中，工件的几何形状完全或部分建立在模具几何形状的基础上的。
冲压模具设计毕业外文翻译 中英文翻译 外文文献翻译
冲压模具设计毕业外文翻译中英文翻译外文文献翻译毕业设计(论文)外文资料翻译系部:专业:姓名:学号:外文出处: The Pofessional English of DesignManufacture for Dies & Moulds附件: 1.外文资料翻译译文,2.外文原文。
指导教师评语:签名:年月日附件1:外文资料翻译译文冲压模具设计对于汽车行业与电子行业，各种各样的板料零件都是有各种不同的成型工艺所生产出来的，这些均可以列入一般种类“板料成形”的范畴。
板料成形(也称为冲压或压力成形)经常在厂区面积非常大的公司中进行。
如果自己没有去这些大公司访问，没有站在巨大的机器旁，没有感受到地面的震颤，没有看巨大型的机器人的手臂吧零件从一个机器移动到另一个机器，那么厂区的范围与价值真是难以想象的。
当然，一盘录像带或一部电视专题片不能反映出汽车冲压流水线的宏大规模。
站在这样的流水线旁观看的另一个因素是观看大量的汽车板类零件被进行不同类型的板料成形加工。
落料是简单的剪切完成的，然后进行不同类型的加工，诸如:弯曲、拉深、拉延、切断、剪切等，每一种情况均要求特殊的、专门的模具。
而且还有大量后续的加工工艺，在每一种情况下，均可以通过诸如拉深、拉延与弯曲等工艺不同的成形方法得到所希望的得到的形状。
根据板料平面的各种各样的受应力状态的小板单元体所可以考虑到的变形情形描述三种成形，原理图1描述的是一个简单的从圆坯料拉深成一个圆柱水杯的成形过程。
图1 板料成形一个简单的水杯拉深是从凸缘型坯料考虑的，即通过模具上冲头的向下作用使材料被水平拉深。
一个凸缘板料上的单元体在半径方向上被限定，而板厚保持几乎不变。
板料成形的原理如图2所示。
拉延通常是用来描述在板料平面上的两个互相垂直的方向被拉长的板料的单元体的变形原理的术语。
拉延的一种特殊形式，可以在大多数成形加工中遇到，即平面张力拉延。
在这种情况下，一个板料的单元体仅在一个方向上进行拉延，在拉长的方向上宽度没有发生变化，但是在厚度上有明确的变化，即变薄。
模具设计相关专业毕业论文(外文原文+翻译)之翻译[管理资料]
![模具设计相关专业毕业论文(外文原文+翻译)之翻译[管理资料]](https://img.taocdn.com/s3/m/63ac390ff705cc1754270968.png)
可行成形图在汽车覆盖件冲压工艺高效设计的应用Dae-Cheol Ko a，Seung-Hoon Cha b，Sang-Kon Lee c，Chan-Joo Lee b，Byung-Min Kim d,*a ILIC, Pusan National University, 30 Jangjeon-Dong, Kumjeong-Gu, Busan609-735, South Koreab Precision Manufacturing Systems Division, Pusan National University, 30Jangjeon-Dong, Kumjeong-Gu, Busan 609-735, South Koreac PNU-IFAM, Joint Research Center, Pusan National University, 30Jangjeon-Dong, Kumjeong-Gu, Busan 609-735, South Koread School of Mechanical Engineering, Pusan National University, 30 Jangjeon-Dong, Kumjeong-Gu, Busan 609-735, South Korea摘要：本文提出使用可行的成形图来表示无断裂和起皱的安全区域，进而有效和快速地设计冲压工艺方法。
要确定可行的成形图，有限元分析对应于正交实验设计的过程变量组合。
随后，基于成形极限图的有限元分析，确定断裂和起皱的特征值。
所有组合的特征值在整个过程中，通过人工神经网络训练进行了一系列预测。
可行的成形图从所有组合的过程变量中最终确定。
以汽车覆盖件如转动架和车轮毂的冲压工艺作为实例来验证利用成形图的进行过程设计有效性。
有限元模拟结果与实验模拟结果比较表明，利用可行的成形图来进行冲压工艺的设计是有效的并适用于实际的过程。
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中英文对照外文翻译文献(文档含英文原文和中文翻译)译文:冲压模具设计对于汽车行业与电子行业，各种各样的板料零件都是有各种不同的成型工艺所生产出来的，这些均可以列入一般种类“板料成形”的范畴。
板料成形（也称为冲压或压力成形）经常在厂区面积非常大的公司中进行。
如果自己没有去这些大公司访问，没有站在巨大的机器旁，没有感受到地面的震颤，没有看巨大型的机器人的手臂吧零件从一个机器移动到另一个机器，那么厂区的范围与价值真是难以想象的。
当然，一盘录像带或一部电视专题片不能反映出汽车冲压流水线的宏大规模。
站在这样的流水线旁观看的另一个因素是观看大量的汽车板类零件被进行不同类型的板料成形加工。
落料是简单的剪切完成的，然后进行不同类型的加工，诸如：弯曲、拉深、拉延、切断、剪切等，每一种情况均要求特殊的、专门的模具。
而且还有大量后续的加工工艺，在每一种情况下，均可以通过诸如拉深、拉延与弯曲等工艺不同的成形方法得到所希望的得到的形状。
根据板料平面的各种各样的受应力状态的小板单元体所可以考虑到的变形情形描述三种成形，原理图1描述的是一个简单的从圆坯料拉深成一个圆柱水杯的成形过程。
图1 板料成形一个简单的水杯拉深是从凸缘型坯料考虑的，即通过模具上冲头的向下作用使材料被水平拉深。
一个凸缘板料上的单元体在半径方向上被限定，而板厚保持几乎不变。
板料成形的原理如图2所示。
拉延通常是用来描述在板料平面上的两个互相垂直的方向被拉长的板料的单元体的变形原理的术语。
拉延的一种特殊形式，可以在大多数成形加工中遇到，即平面张力拉延。
在这种情况下，一个板料的单元体仅在一个方向上进行拉延，在拉长的方向上宽度没有发生变化，但是在厚度上有明确的变化，即变薄。
图2 板料成形原理弯曲时当板料经过冲模，即冲头半径加工成形时所观察到的变形原理，因此在定向的方向上受到改变，这种变形式一个平面张力拉长与收缩的典型实例。
在一个压力机冲程中用于在一块板料上冲出一个或多个孔的一个完整的冲压模具可以归类即制造商标准化为一个单工序冲孔模具，如图3所示。
图3 典型的单工序冲孔模具1—下模座 2、5—导套 3—凹模 4—导杆6—弹压卸料板 7—凸模 8—托板 9—凸模护套 10—扇形块 11—固定板 12—凸模固定板 13—垫块 15—阶梯螺钉 16—上模座 17—模柄任何一个完整的冲压模具都是有一副（或多副的组合）用于冲制工作的（冲压）零件组成，包括：所有的支撑件部分与模具的工作部分零件，即构成一副冲模。
冲压（术语）通常将完整压制工具的凹模（母模）部分定义为模具。
导杆，或导柱，是安装在下模座上的。
上模座则安装有用于导杆滑动的导套，分别装有导套与导杆的上模座与下模座组合成为木架。
模架有许多规格与结构设计用于商业销售。
安装在上模座上的凸模固定装置固定两个凸模（模具中的突出部分），这两个圆形凸模则通过插入在卸料板上的导套进行导向。
套筒，或凸模护套，是用来保护冲头，以免在冲压过程中被卡住。
在冲穿工件材料后，两个冲头便进入到凹模一定距离。
凹模（母模）部分，即凹模，通常是由插入模具体内的两个模具导套组成的。
因为冲头的直径是被冲孔的直径所要求的，所以有一定间隙的凹模直径是大于冲头直径的。
由于工件材料坯料或工件在冲制回程时与冲头附连在一起，所以把材料从冲头上剥离是必需的。
弹压卸料板则保持冲头在冲制工件回程时缩回，使工件与工件剥离。
一个冲制的工件通常是留在漏料槽内的，漏料槽是由包含整个零件外轮廓的平板组成。
模座是由销钉支撑板以及其他的滑块下行程时定位的挡料块等定位的。
弯曲时一种最常见的成形工序。
当我们仅将目光移至汽车或电器上的部件，或一个剪纸机或档案柜上时，就会发现许多零件都是由弯曲成形的。
弯曲不仅可以用来成形法兰、接头、波纹，也可以提高零件的强度（通过增加零件的惯性矩）。
图4 弯曲术语弯曲中所用的术语，如图4所示，应该注意的是，在弯曲中材料的外纤维是处于拉应力状态，而材料的内纤维则处于压应力状态。
由于泊松比原因，在外部区域的零件（弯曲长度L）是小于原始宽度，处于内部区域的则比原始宽度大。
这种现象可在弯曲一个矩形的橡胶板擦时容易观察到的。
最小弯曲半径对于不同的金属是变化的。
一般而言，各种退火的金属板在没有断裂或变弱的前提下，可以弯曲成一个等同金属板厚的半径。
随着R/T比值的减少（弯曲半径对厚度的比值变小），外纤维的拉应力增加，材料最终断裂（参见图5）。
图5 泊松效应不同材料的最小弯曲半径参考表1，他通常是按照不同板厚来表示的，诸如：2T，3T，4T等。
表1 在室温状态下各种材料的最小弯曲半径材料状态软硬铝合金0 6T钕青铜合金，钕合金0 4T黄铜，低铅0 2T镁5T 13T钢奥氏体不锈钢0.5T 6T 低碳钢，低合金钢，高强度铅合金0.5T 4T钛0.7T 3T钛合金 2.6T 4T 注：T——材料厚度。
弯曲容许范围，是指弯曲中的中性线（层）的长度，用来确定弯曲零件的坯料长度。
然而，中性线（层）的位置是哟弯曲角度（正如在材料力学课本中所描述）来决定的。
弯曲容许范围（L b）的近似的公式为：L b=α(R+kT)式中：L b——弯曲容许范围，毫米；α——弯曲角度（弧度），度；T——金属板厚，毫米；R——弯曲内层半径，毫米；k——当半径R＜2T时为0.33，当半径R＞2T时为0.50。
弯曲方式通常用于冲压模具。
金属钢板或带料，由V形支撑，参见图6（a）在楔形冲头的冲压力作用下进入V形模具内弹簧加载压花销和零件之间的摩擦将会防止或减少零件在弯曲期间的边缘滑移。
棱边弯曲，参见图6（b）是悬臂横梁式加载方式，弯曲冲头对相对支撑的凹模上的金属施加弯曲力。
弯曲轴线是与弯曲模具的棱边相平行的。
在冲头接触工件之前，为了防止冲头向下行程的位移，工件则被一个弹性加载垫片加紧模具体上。
图6 弯曲方式弯曲力的大小是可以通过对一根矩形横梁的简单弯曲的工艺过程的确定来估算。
在此情况下的弯曲力是材料强度的函数，此弯曲力的计算式为：P=KLST2/W式中：P——弯曲力，吨（对于米制使用单位，吨乘以8.896数值以得到千牛顿单位）；K——模具开启系数：16倍材料厚度（16T）时的开启系数为1.20，8倍材料厚度（8T）时的开启系数为1.33;L——零件长度，英寸;S——极限张力强度，吨/平方英寸；W——V或U形模具的宽度，英寸；T——材料厚度，英寸。
对于U形弯曲（槽形弯曲），弯曲力大约是V形弯曲所需要的弯曲压力的两倍，棱边弯曲则大约是V形弯曲所需要的弯曲压力的1/2。
回弹。
所有金属材料均有一个固定的弹性模量，随之而来的是塑性变形，当施加在材料上的弯曲力消除时就会有一些弹性恢复（见图7）。
在弯曲过程中这种恢复称为回弹。
一般而言，这样的回弹在0.5°～5°之间变化，取决于固定的弹性模量、弯曲方式、模具间隙等。
磷青铜的回弹则在10°～15°之间。
图7 弯曲中的回弹减少或消除在弯曲工序中回弹方法可以根据下列工艺方法进行，如图8所示，在弯曲模具中产生的零件也可以通过等同回弹角度弯曲模上挖凹模或弹性缓冲式弯曲模而被过度弯曲来减少或消除回弹。
图8 减少或消除回弹的方法从应用角度来说，有许多类型的压力机，诸如：闭式双点偏心轴单动机械压力机，冲压成形机，液压成形压力机，液压机，弯板机，三动式压力机，冲模回转压力机，双点压力机，双边齿轮驱动压力机，双点单动压力机，台式压力机，切边压力机，闭式单动（曲柄）压力机，肘杆式压力机，单点单动压力机，开式双柱可倾压力机，开式压力机，四点式压力机，四曲柄压力机，飞轮式螺旋压力机，摩擦传动螺旋压力机，闭式双点单动双曲柄压力机，摇臂式压力机螺旋式压力机和上传动板料冲压自动压力机等。
双动式压力机是用于钣金零件的拉深加工。
此种类型的压力机有一个外滑块（压边圈），并且有一个切断的内滑块（冲头夹紧器）。
在加工工作循环期间，压边圈首先与零件接触，然后施加压力使冲头夹紧器进行适当零件拉深（见图9）。
图9 典型通用压力机三动式压力机具有和双动式压力机相同的内、外滑块。
另外，三动式压力机床身还有另一个滑块，它可向上运动，从而在一个冲压循环中实现反向拉伸。
三动式压力机应用不是很广泛。
肘杆式压力机是用于压印加工。
这装置的设计是在冲压行程的末端以很高压力。
此种压力机利用一个曲柄（曲柄带动违节运动，连节是由两个在上死点到下死点之间进行摆动的连杆组成，连杆摆动时间很短）．在临近冲程底部时慢速移动的滑块具有功率很大的短距离位移。
液压机主要是用于成形加工工序中，相比大多散机械式压力机，它有一个比较长的工作周期。
液压机的优点足工作压力、冲程和滑块的速度均是可调的（见图10）。
图10 典型液压机液压机属于压力限定型的成形机械，液压机的主要用途体现在沿滑块路径外力是必须保持恒定或处于精确摊制锋成形技术领域中。
活塞与液压缸的驱动机构是用线性方式实现的，并且直接．连接到滑块。
液压机框架结构的形式是非常类似于机械式力机。
液压驱动装置易于安装在机械框架结构中。
因此几种液压机驱动很容易就被制成复杂成形与切断加工（拉深、挤压、切断、模锻等）的单一机械，并且所要求的运动可以容易地定位，弯扳机除了它的长床身之外基本是与开式压力机棚同的，床身长度可为6～20英尺(1.8～6米)或更长，它基本上是用在尺寸大的钣金零件上的各种类型的弯曲加工成形，它也可以使用不同整套的刀具分别进行浅冲孔、切口与成形（见图11）。
这就可以使零件仅通过把复杂的零件分成几个简单的加工工序实现由复杂设计到精确制造的过程，且没有使用昂贵的冲制刀具。
此种类型加工工序用于小批量生产或试样零件。
图11 典型弯板机使用带有简单央具的弯扳机可以容易地对钣金进行弯曲。
弯板机使用一个用在机械或液压饥上的长模具，适用于小批量生产。
模具简单，适于各种类型的成形加工，而且，加工工序很容易实现自动化。
弯板机的模具材料可以是硬木（用于低强度材料与小批量生产），也可以是硬质合金材料。
大多数应用中，一般是使用碳钢或灰铸铁材料模具。
原文:Stamping Die DesignThe wide variety of sheet metal parts for both the automobile and electronic industries is produced by numerous forming processes that fall into the generic category of "sheet-metal forming". Sheet-metal forming ( also called stamping or pressing )is often carried out in large facilities hundreds of yards long.It is hard to imagine the scope and cost of these facilities without visiting an automobile factory, standing next to the gigantic machines, feeling the floor vibrate, and watching heavy duty robotic manipulators move the parts from one machine to another. Certainly, a videotape or television special cannot convey the scale of today's automobile stamping lines. Another factor that one sees standing next to such lines is the number of different sheet-forming operations that automobile panels go through. Blanks are created by simple shearing, but from then on a wide variety of bending, drawing, stretching, cropping , and trimming takes place, each requiring a special, custom-made die.Despite this wide variety of sub-processes, in each case the desired shapes are achieved by the modes of deformation known as drawing, stretching, and bending. The three modes can be illustrated by considering the deformation of small sheet elements subjected to various states of stress in the plane of the sheet. Figure 1 considers a simple forming process in which a cylindrical cup is produced from a circular blank.Figure 1 Sheet forming a simple cupDrawing is observed in the blank flange as it is being drawn horizontally through the die by the downward action of the punch. A sheet element in the flange is made to elongate in the radial direction and contract in the circumferential direction, the sheet thickness remaining approximately constant Modes of sheet forming are shown in Figure 2.Figure2 Modes of sheet formingStretching is the term usually used to describe the deformation in which an element of sheet material is made to elongate in two perpendicular directions in the sheet plane. A special form of stretching, which is encountered in most forming operations, is planestrain stretching. In this case, a sheet element is made to stretch in one direction only, with no change in dimension in the direction normal to the direction of elongation but a definite change in thickness, that is, thinning.Bending is the mode of deformation observed when the sheet material is made to go over a die or punch radius, thus suffering a change in orientation. The deformation is an example of plane strain elongation and contractionA complete press tool for cutting a hole or multi-holes in sheet material at one stroke of the press as classified and standardized by a large manufacturer as a single-station piercing die is shown in Figure3.Any complete press tool, consisting of a pair( or a combination of pars ) of mating member for producing pressworked (stmped）parts, including all supporting and actuating elements of the tool, is a die. Pressworking terminology commonly defines the female part of any complete press tool as a die.The guide pins, or posts, are mounted in the lower shoe. The upper shoe contains bushings which slide on the guide pins. The assembly of the lower and upper shoes with guide pins and bushings is a die set. Die sets in many sizes and designs are commercially available.The guide pins are shown in Figure 3.Figure3 Typical single-station die for piercing hole1—Lower shoe 2,5—Guide bushings 3—Cavity plate 4—Guid pin 6—Spring-loaded stripper 7—Punch 8—Support plate 9—Punch bushing 10—Fan-shaped block 11—Fixed plate 12—Punch-holder plate 13—Backing plate 14—Spring 15—Stepping bolts16—Upper shoe 17—ShankA punch holder mounted to the upper shoe holds two round punches (male members of the die) which are guided by bushings inserted in the stripper. A sleeve, or quill, encloses one punch to prevent its buckling under pressure from the ram of the press. After penetration of the work material, the two punches enter the die bushings for a slight distance.The female member, or die, consists of two die bushings inserted in the die block. Since this press tool punches holes to the diameters required, the diameters of the die bushings are larger than those of the punches by the amount of clearance.Since the work material stock or workpiece can cling to a punch on the upstroke, it may be necessary to strip the material from the punch. Spring-loaded strippers hold the work material against the die block until the punches are withdrawn from the punchedholes. A workpiece to be pierced is commonly held and located in a nest (Figure 2-3)composed of flat plates shaped to encircle the outside part contours. Stock is positioned in dies by pins, blocks, or other types of stops for locating before the downstroke of the ram.Bending is one of the most common forming operations. We merely have to look at the components in an automobile or an appliance-or at a paper clip or a file cabinet-to appreciate how many parts are shaped by bending. Bending is used not only to form flanges, seams, and corrugations but also to impart stiffness to the part ( by increasing its moment of inertia ).The terminology used in bending is shown in Figure 4. Note that, in bending, the outer fibers of the material are in tension, while the inner fibers are in compression. Because of the Poisson's ratio, the width of the part (bend length, L) in the outer region is smaller, and in the inner region is larger than the original width. This phenomenon may easily be observed by bending a rectangular rubber eraser.Minimum bend radii vary for different metals, generally, different annealed metals can be bent to a radius equal to the thickness of the metal without cracking or weakening. As R/T decreases (the ratio of the bend radius to the thickness becomes smaller), the tensile strain at the outer fiber increases, and the material eventually cracks (Figure 5).Figure 4 Bending terminologyFigure5 Poisson effectThe minimum bend radius for various materials is given in Table 1 and it is usually expressed in terms of the thickness. such as 2 T, 3 T, 4T.Table 1 Minimum bend radius for various materials at room temperatureMaterial ConditionSoft Hard Aluminum alloys 0 6TBeryllium copper 0 4TBrass,low-leaded 0 2T Magnesium 5T 13TSteelsAustenitic stanless 0.5T 6TLow-carbon,lowalloy,HSLA 0.5T 4TTitanium 0.7T 3T Titanium alloys 2.6T 4TNote :T——thickness of materialBend allowance as shown in Figure 4 is the length of the neutral axis in the bend and is used to determine the blank length for a bent part. However, the position of the neutral axis depends on the radius and angle of bend (as described in texts on mechanics of materials).An approximate formula for the bend allowance, Lb is given byL b= α(R十kT)Where L b——bend allowance, in (mm).α——bend angle, (radians) (deg).T——sheet thickness, in (mm).R——inside radius of bend, in (mm).k——0.33 when R is less than 2T and 0.50 when JR is more than 2T.Bend methods arc commonly used in press tool. Metal sheet or strip, supported by-V bock[Figure 6(a)],is forced by a wedge-shaped punch into the block. This method, termed V bending, produces a bend having an included angle which may be acute, obtuse, or 90°.Friction between a spring-loaded knurled pin in the vee die and the part will prevent or reduce side creep of the part during its bending.Edge bending [Figure 6(b)] is cantilever loading of a beam. The bending punch forces the metal against the supporting die. The bend axis is parallel to the edge of the die. The workpiece is clamped to the die block by a spring-loaded pad before the punch contacts the workpiece to prevent its movement during downward travel of the punch.Figure 6 Bending methodsBending Force can be estimated by assuming the process of simple bending of a rectangular beam. The bending force in that case is a function of the strength of the material. The calculation of bending force is as follows:P=KLST2/WWhere P-bending force, tons (for metric usage, multiply number of tons by 8.896 to obtain kilonewtons).K——die opening factor: 1.20 for a die opening of 16 times metal thickness, 1.33 for an opening of 8 times metal thickness.L——length of part, in.S——ultimate tensile strength, tons per square in.W——width of V or U die, in.T——metal thickness, in.For U bending (channel bending) pressures will be approximately twice those required for V bending, edge bending requires about one-half those needed for V bending.Springback in that all materials have a finite modulus of elasticity, plastic deformation is followed, when bending pressure on metal is removed, by some elastic recovery (see Figure 7). In bending, this recovery is called springback. Generally speaking, such a springback varies in sheet from 0.5°to 5°, depending upon finite modulus of elasticity, modes of bending, clearance of die and so on, but phosphor bronze may spring back from 10°to15°.Figure 7 Springback during bendingMethods of reducing or eliminating springback in bending operations can be made according to the following operations, shown in Figure 8, and parts produced in bending die are also overbent through an angle equal to the springback angle with an undercut or relieved punch.Figure8 Methods of reducing or eliminating springbackFor the applications, there are many types of the presses, such as the single-action straight-slide eccentric mechanical press, punch press, hydro-former press, hydraulic press, press brake, triple-action press, turret press, two-point press, twin-drive press, two point single-action press, watch press, trimming press, closed-type single-action crank press, knuckle-lever press, one-point single-action press, open-back inclinable press, open-side press, four-point press, four-crank press, flywheel-type screw press, friction screw press, straight-side single-action double-crank press, rocker-arm press, screw press and top-drive sheet-metal stamping automatic press and so on.A double-action press is used for large, or deep drawing operations on sheet metal parts. This type of press has an outer ram ( blank holder ) and a section inner ram ( punch holder ) . During the operating cycle, the blank holder contacts the material first andapplies pressure to allow the punch holder to properly draw the part (Figure 9).Figure9 Typical versatile pressA triple-action press has the same inner and outer ram as the double-action press, but a third ram in the press bed moves up allowing a reverse draw to be made in one press cycle. The triple-action press is not widely used.A knuckle press is used for coining operation. The design of the drive allows for very high pressures at the bottom of the ram stroke. This type uses a crank, which moves a joint consisting of two levers that oscillate to and from dead center and results in a short, powerful movement of the slide with slow travel near the bottom of the stroke.A hydraulic press is used basically for forming operations and has a slower operating cycle time than most mechanical presses. The advantages of hydraulic presses are that the working pressure stroke, and speed of the ram are adjustable (Figure 10).Hydraulic presses belong to the force-constrained type of forming machines . Their main use is found in those areas of forming technology where the force along the path of the ram must remain constant or under accurate control. The drive mechanism of piston and cylinder acts in a linear manner and is directly connected to the ram. The form of frame construction of hydraulic presses is largely similar to that of mechanical presses. The hydraulic drive units are easily accommodated in the machine frame.Consequently, several hydraulic drives can readily be built into a single machine forcomplicated forming and cutting operations (drawing, extruding, cutting, swaging, etc.), and the required motions may be easily coordinated.A press brake is essentially same as a gap-frame press except for its long bed from6 to 20 feet (1.8～6m) or more. It is used basically for various bending operations on large sheet metal parts. It can also be used with a series of separate sets of press tools to do light piercing, notching, and forming (Figure 11). This allows parts of a complex design to be accurately made without a high-cost press tool by simply breaking the complex part down into several simple operations. This type of operation is used on low-run or prototype parts.Figure 10 typical hydraulic press Figure 11 Typical press brakeSheet metal can be bent easily with simple fixtures using a press brake. This press brake utilizes long dies in a mechanical or hydraulic press and is suitable for small production runs. The tooling; is simple, and it is adaptable to a wide variety of shapes, furthermore, the process can be easily automated. Die materials for press brakes may range from hardwood (for low-strength materials and small production runs) to carbides. For most applications, carbon-steel or gray-iron dies are generally used.谢谢下载，祝您生活愉快！谢谢下载，祝您生活愉快！。