机械设计 英语PPT
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机械设计制造及其自动化专业英语UnitMechanicalPropertiesofMaterialsPPT课件
• 当卸载时，变形消失。对于许多材料来说， 上述情况发生的应力极限值称为弹性极限σe 。
精品课件 10
Mechanical properties
• This is depicted [diˈpekt] by the straight line relationship and a small deviation [ˌdiviˈeʃən] thereafter, in the stress-strain curve (Fig. 3. 1).
• 而在这其中最重要的是腐蚀性，通俗的解释 是材料在特定大气中长期使用时，抵抗腐(败) 蚀的能力。
精品课件 5
Mechanical properties
• Mechanical properties include the strength properties like tensile, compression, shear, torsion, impact, fatigue and creep .
word
• cross-section 横截面 • ordinate n. 纵坐标 [ˈɔ:rdineit] • abscissa n. 横坐标 [əbˈsisə] • deviation n. 偏离；偏移 [ˌdi:viˈeiʃən] • time-lag 延时；落后；时滞 • yield n. ； v. 屈服 [ji:ld] • elongation n. 延伸率；伸长 [ˌi:lɔŋ'ɡeiʃən] • diminish n. 减小；缩小 [diˈminiʃ] • necking n. 颈缩；形成细颈现象 ['nekiŋ]
• 材料在加载时，随着载荷大小的变化，尺寸 会发生改变。
精品课件 9
Mechanical properties
精品课件 10
Mechanical properties
• This is depicted [diˈpekt] by the straight line relationship and a small deviation [ˌdiviˈeʃən] thereafter, in the stress-strain curve (Fig. 3. 1).
• 而在这其中最重要的是腐蚀性，通俗的解释 是材料在特定大气中长期使用时，抵抗腐(败) 蚀的能力。
精品课件 5
Mechanical properties
• Mechanical properties include the strength properties like tensile, compression, shear, torsion, impact, fatigue and creep .
word
• cross-section 横截面 • ordinate n. 纵坐标 [ˈɔ:rdineit] • abscissa n. 横坐标 [əbˈsisə] • deviation n. 偏离；偏移 [ˌdi:viˈeiʃən] • time-lag 延时；落后；时滞 • yield n. ； v. 屈服 [ji:ld] • elongation n. 延伸率；伸长 [ˌi:lɔŋ'ɡeiʃən] • diminish n. 减小；缩小 [diˈminiʃ] • necking n. 颈缩；形成细颈现象 ['nekiŋ]
• 材料在加载时，随着载荷大小的变化，尺寸 会发生改变。
精品课件 9
Mechanical properties
《机械类专业英语》课件
Skimming
This skill allows readers to quickly scan through the text to get a general understanding of the content It is often used to identify key information or main ideas
Learning significance and purpose
Learning significance and purpose
Learning significance: Mastering mechanical English is of great significance for enhancing personal competitiveness, broadening international perspectives, and promoting academic exchanges.
PPT courseware for Mechanical Professional English
• Introduction to Mechanical Professional English
• Mechanical English Vocabulary • Mechanical English Reading and
Outline
Skimming through the text to identify key information or ideas and creating an outline to organize them This helps readers understand the structure of the article and how different ideas are connected
This skill allows readers to quickly scan through the text to get a general understanding of the content It is often used to identify key information or main ideas
Learning significance and purpose
Learning significance and purpose
Learning significance: Mastering mechanical English is of great significance for enhancing personal competitiveness, broadening international perspectives, and promoting academic exchanges.
PPT courseware for Mechanical Professional English
• Introduction to Mechanical Professional English
• Mechanical English Vocabulary • Mechanical English Reading and
Outline
Skimming through the text to identify key information or ideas and creating an outline to organize them This helps readers understand the structure of the article and how different ideas are connected
机械类专业英语ppt课件
精选课件
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❖ cumulative ['kjuːmjʊlətɪv]
❖ adj. 累积的
❖ cumulative error 累积误差 ; 积累误差 ; 累积差误 ❖ cumulative frequencies 累积频数 ; 累计频数 ❖ cumulative learning 累积学习
❖ dimensionless
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❖ uniaxial ❖ adj. 单轴（向）的，同轴的
念 ; 压力集中 ❖ axial stress 轴向应力 ; 轴应力 ; 多轴向应力 ❖ ; 热应力试验 ❖ stress corrosion 应力腐蚀 ; 超应力腐蚀 ; 应力腐化 ; 应 ❖ Stress ball 压力球 ; 减压球 ; 美国原装 ; 握力球 ❖ stress amplitude 应力幅 ; 应力幅值 ; 应力幅度 ; 应力振幅
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❖ quantity
❖ n. 参数，值；数量；总量
❖ physical quantity 物理量 ; 物理量 ; 实物量 ; 要的实物量 ❖ dimensionless quantity 无量纲量 ; 无因次量 ; 无因次值 ❖ average quantity 平均数量 ; 平均量 ; 均匀数量 ; 均匀数目 ❖ additional quantity 追加数量 ; 额外数量 ; 附加量 ❖ considerable quantity 大数量 ; 可观的
❖ magnitude
❖ n. 数量、数值；大小；量级
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10
❖ equilibrium ❖ n. 平衡；稳定；保持平衡的能力
❖ [,iːkwɪ'lɪbrɪəm]
机械制造技术英文PPT2
Faceplate
Bending of plate
Principlal axis of machine
The positioning pin Clamping with a jig
workpiece
Figure 4
Clamp non-shaft parts in the principle axis of machine, and use faceplate and bending of plate to automatically coincide the machining hole axis and the spindle axis.
workpiece
The line of position
Four-jaw chuck
Drawing a straight line
Figure 3
2、 The method of clamping
(3) Clampinபைடு நூலகம் with a jig
This way load the workpiece on the jig, without following the drawn lines, then straight hold the correct processing position.
Clamping Straight for Draw a line for methods the front clip the mock-up clip
Clamping types
General clamping
Clamping with a jig
Special clamping
efficiency, cost
Figure 2: direct finding the positive clamps
《机械专业英语unit》课件
Example analysis
Case Studies
Analyze real world case studies to demonstrate practical applications of mechanical writing
Compare and Contrast
Compare different writing styles and techniques to identify best practices
Standard expression: Mechanical English requires standardized and rigorous expression, in accordance with industry standards.
02
Common vocabulary and expressions in mechanical engineering English
Language accuracy
Use precision language and avoid technical errors
Clarity
Use simple language and avoid jargon to ensure the reader easily understands the content
Writing Standards
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APA Style: Follow the American Psychological Association (APA) style guide for formatting and citations
APA Style: Follow the American Psychological Association (APA) style guide for formatting and citations
机械设计制造及其自动化专业英语--Design of machine and machine elements ppt课件
在对机器进行初步规划时，必须对装载、使用的运动(学的)元件的类型 和工程材料的正确使用作出基本决定。
PPT课件
4
4
Machine design
Economic [ˌi:kəˈnɑ:mɪk] considerations are usually of prime [praɪm] importance when the design of new machinery is undertaken. In general, the lowest over-all costs are designed.
nuisance [ˈnju:sns] n. 讨厌的人或东西，麻烦事
loosen [ˈlu:sn] v. 解开，放松，松开
radiator [ˈreidieitə] n. 散热器，电暖炉，辐射体
PPT课件
1
1
Design of machine and machine elements word
目标是要生产一台机器，它不仅在合理寿命期内坚固耐用，同时价格 低廉足以在经济上是可行的。
PPT课件
7
7
Machine design
The engineer in charge of the design of a machine should not only have adequate [ˈædɪkwɪt] technical training, but must be a man of sound judgment and wide experience, qualities which are usually acquired only after considerable time has been spent in actual professional work.
PPT课件
4
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Machine design
Economic [ˌi:kəˈnɑ:mɪk] considerations are usually of prime [praɪm] importance when the design of new machinery is undertaken. In general, the lowest over-all costs are designed.
nuisance [ˈnju:sns] n. 讨厌的人或东西，麻烦事
loosen [ˈlu:sn] v. 解开，放松，松开
radiator [ˈreidieitə] n. 散热器，电暖炉，辐射体
PPT课件
1
1
Design of machine and machine elements word
目标是要生产一台机器，它不仅在合理寿命期内坚固耐用，同时价格 低廉足以在经济上是可行的。
PPT课件
7
7
Machine design
The engineer in charge of the design of a machine should not only have adequate [ˈædɪkwɪt] technical training, but must be a man of sound judgment and wide experience, qualities which are usually acquired only after considerable time has been spent in actual professional work.
机械设计(英文版)全册配套完整教学课件
For the convenience of kinematic or dynamic analysis of a machine, a machine can be decomposed into mechanisms.
3) Classification of Machine Elements
Energy absorber: brakes 制动器and dampers减震器 Supporting elements: shafts, springs弹簧, seals密封 Connection and joints: thread fasteners螺纹紧固件,
keys键, couplings联轴器
2) Composition of Machine
In terms of basic manufacturing unit, a machine is composed by machine elements/components.
In terms of the functions of the sub-system of a machine, it is comprised of the source-power, transmission, execution and control/manipulation parts.
belt) 汽车发动机（多楔带）
Machine design is the fundamental practice in engineering; is the transformation of concepts and ideas into useful machinery.
Machine design is the application of science and technology to devise new or improved products for the purpose of satisfying human needs.
3) Classification of Machine Elements
Energy absorber: brakes 制动器and dampers减震器 Supporting elements: shafts, springs弹簧, seals密封 Connection and joints: thread fasteners螺纹紧固件,
keys键, couplings联轴器
2) Composition of Machine
In terms of basic manufacturing unit, a machine is composed by machine elements/components.
In terms of the functions of the sub-system of a machine, it is comprised of the source-power, transmission, execution and control/manipulation parts.
belt) 汽车发动机（多楔带）
Machine design is the fundamental practice in engineering; is the transformation of concepts and ideas into useful machinery.
Machine design is the application of science and technology to devise new or improved products for the purpose of satisfying human needs.
机械设计制造及其自动化专业英语--Manufacturing Process ppt课件
日益增长的需求意味着制造业不再是简单的手工作坊式的行业，而应 该在制造业中引入科学化的研究手段。
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Computer-Aided manufacturing
Taylor pioneered studies in “scientific management” in which methods for production by both men and machines were studied. 泰勒开创了“科学管理”的研究，透过人员和机器研究生产的方法。
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Computer-Aided manufacturing
This tool-life equation is still the basis of determining economic metal cutting and has been used in adaptive controlled machining.
economy
techniques 大批量生产技术
of scale 规模经济
versus
[ˈvə:səs] prep. 与……比较，……对……，作 为……的函数
['semiɔ:tə'mætik] adj. 半自动的 [ˈmænjuəl] adj. 手工的
2
semiautomatic manual
从科学上进行研究金属切削和自动化技术研究起始于第二十世纪。这 些技术的先驱者是弗雷德里克．泰勒和亨利.福特。
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ComputΒιβλιοθήκη r-Aided manufacturing
During the early 1900s, the improving U.S. standard of living brought a new high in personal wealth. The major result was the increased demand for durable [ˈdʊrəbl] goods.
《机械类专业英语》课件
Summary
Mastering common sentence patterns and grammar is the key to accurately expressing concepts in the field of machinery.
Detailed description
There are some specific sentence patterns and grammatical structures in Mechanical English, such as passive voice and complex sentence patterns. Learners need to be familiar with these sentence patterns and grammar to ensure that they can accurately and fluently express their meaning in writing and speaking.
Course objectives and learning significanceCourse objective: By studying mechanical engineering English, students will be able to master professional English vocabulary, terminology, and expressions in the field of mechanical engineering, and improve their reading, writing, translation, and communication skills.Learning significance: Students with mechanical English proficiency can better adapt to international demands, enhance their competitiveness in the field of mechanical engineering, and also contribute to promoting technical exchange and cooperation in the field of mechanical engineering.
机械制造技术英文PPT11
(1) Orthogonal plane reference system 1) The base plane Pr passes through the plane perpendicular to the cutting
speed at the selected point on the cutting edge. The base surface of the turning tool is the plane parallel to the bottom surface through the selected point of the cutting edge, and the base surface of the milling cutter and drill is the axial section of the tool.
3) The orthogonal plane Po passes through the plane selected by the cutting edge and is perpendicular to both the base plane and the cutting plane.
Orthogonal plane reference system
Basic knowledge of tool cutting
一、 The composition of the cutting part of the tool
• There are many types of tools used in metal cutting, and their shapes and uses are different. Among them, the turning tool is a basic tool that is widely used. Other tools can be regarded as the evolution or combination of turning tools. The outer turning tool is taken as an example to illustrate the basic concept of the tool composition and the geometric parameters of the cutting part of the tool.