机械专业英语课件
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《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
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14
❖ 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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❖ equilibrium ❖ n. 平衡；稳定；保持平衡的能力
❖ [,iːkwɪ'lɪbrɪəm]
机械专业英语课件 PPT
1.There are two kinds of gun drills, namely, the center-cut gun drill used for drilling blind holes and the trepanning drill.
深孔钻分为两种，即用于钻削盲孔的中心钻和套孔 钻。
另一方面，直柄钻被固定到钻夹中，同理， 钻夹以与锥柄钻相同的方式固定到主轴孔中。
Paragraph 5
1.Twist drills are usually made of high-speed steel, although carbide-tipped drills are also available. The size of twist drills used in industrial range from 0.01 up to 3.25 in. (i.e., 0.25 up to 80 mm).
钻是利用绕轴旋转的钻头在工件上生成通孔或盲 孔的加工工艺。
2.Consequently, the range of cutting from that axis of rotation is equal to the radius of required hole.
因此，旋转轴的切削范围就等于所钻孔的半径。
2.This type of drill may have either three or four flutes and equal number of margins, which ensure superior guidance, thus resulting in high machining accuracy.这种类型的钻具有三个或四个出屑槽以及 相同数量的刃带，这些可确保准确的导向，从而获 得较高的机加工精度。
深孔钻分为两种，即用于钻削盲孔的中心钻和套孔 钻。
另一方面，直柄钻被固定到钻夹中，同理， 钻夹以与锥柄钻相同的方式固定到主轴孔中。
Paragraph 5
1.Twist drills are usually made of high-speed steel, although carbide-tipped drills are also available. The size of twist drills used in industrial range from 0.01 up to 3.25 in. (i.e., 0.25 up to 80 mm).
钻是利用绕轴旋转的钻头在工件上生成通孔或盲 孔的加工工艺。
2.Consequently, the range of cutting from that axis of rotation is equal to the radius of required hole.
因此，旋转轴的切削范围就等于所钻孔的半径。
2.This type of drill may have either three or four flutes and equal number of margins, which ensure superior guidance, thus resulting in high machining accuracy.这种类型的钻具有三个或四个出屑槽以及 相同数量的刃带，这些可确保准确的导向，从而获 得较高的机加工精度。
机械工程专业英语课件--L12
tracing and duplicating lathes, (4) single-spindle 转塔车床没有尾架和丝杠，而在尾架的位置上装有一 automatic lathes, (5) multi-spindle automatic lathes, (6) 个装有一个能纵向移动多任务位主切削刀架（如：转 shapers and planers, (7) boring machines. 塔刀架、回轮刀架），另外还具有辅助刀架（如：前、 后刀架），能完成卧式车床上的各种加工工序。是一 本质上，使用单刃刀具切削的机床包括： 种多刀、多任务位加工的高效机床，加工效率比卧式 (1)普通车床；(2)转塔车床；(3)仿形车床； 车床高2~3倍。转塔车床的调整需花费较多时间，适合 于成批生产。 (4)单轴自动车床；(5)多轴自动车床；(6) 此外，转塔车床刀架的纵横向进给设有撞停定程 牛头刨床和龙门刨床；(7)镗床。 装置，可自动控制铬镍钢件尺寸，保证成批工件尺寸 课文分析 的一致性，能自动实现机床的变速预选、进给量改变
主轴箱：电机---齿轮变速---主轴
尾座：锥孔+顶尖 导轨：平、燕尾 刀架：中拖板（流板箱）作横向进给，大拖板作纵向移动 丝杠：加工螺纹
光杠：切削外圆、端面
预备知识
机械工程专业英语
二、词汇
Lesson 24 Lathes
engine lathe 普通车床 turrent lathe 转塔车床 tracing and duplicating lathe 仿形车床 single-spindle automatic lathe 单轴自动车床 multi-spindle automatic lathe 多轴自动车床 shape 牛头刨床 cylindrical grinder 外圆磨床 planer 龙门刨床 centreless grinder 无心磨床 surface grinder 平面磨床 boring machine 镗床 drilling machine 钻床 milling machine 铣床 broaching machine 拉床 sawing machine 锯床 gear-cutting machine 齿轮加工机床
机械制造专业英语 PPT课件
Figure 1.8 shows generalpurpose machine tools used for traditional machining in chip removal and abrasion techniques. Typical examples of general-purpose machine tools include turning, drilling, shaping, milling, grinding, broaching, jig boring, and lapping machines intended for specific tasks. Gear cutting and thread cutting are examples of special-purpose machine tools. During the use of general- or special-purpose manual machine tools, product accuracy and productivity depend on the operator’s participation during operation. Capstan and turret lathes are typical machines that somewhat reduce the operator’s role during machining of bar-type or chucking-type WPs at higher rates and better accuracy. Semiautomatic machine tools perform automatically controlled movements, while the WP has to be hand loaded and unloaded. Fully automatic machine tools are those machines in which WP handling and cutting and other auxiliary activities are performed automatically. Semiautomatic and automatic machine tools are best suited for large production lots where the operator’s interference is minimized or completely eliminated, and parts are machined more accurately and economically.
关于机械工程专业英语课件.ppt
2）Metals are so useful in all branches of industry, including such fundamental industries as machinebuilding, ship-building and national defence, that their importance can scarcely be over-emphasized.
Specialized English for ……. “机械工程专业英语”
Specialized English for Mechanical Engineering
机械工程专专业英业语 英语和普通英语的区别
一、词汇： 专业词汇是基础
二、句子： 长句多 被动语态多 后置定语多 大量的名词化结构 等等
copper 生铜
(2) dog: 狗
(机械专业) 挡块
机械工程专业英语
2. 按照习惯搭配确定词义 e.g: (1) I have a short memory. 我的记忆力不好 (2) This biscuit eats short. 这种饼干吃起来松脆 (3) Indeed he has a short temper. 他确实是个急 性子
disadvantage 高速磨削不存在（知道）这个缺点。
机械工程专业英语 二、句子特点
1. 句子长（学会分解句子结构）
If a hard-grade wheel were to be used for grinding a hard material, the dull grains would not be pulled off from the bond quickly enough, thus impeding(阻 碍) the self-dressing process of the surface of the wheel and finally resulting in clogging(堵塞) of the wheel and burns on the ground surface.
Specialized English for ……. “机械工程专业英语”
Specialized English for Mechanical Engineering
机械工程专专业英业语 英语和普通英语的区别
一、词汇： 专业词汇是基础
二、句子： 长句多 被动语态多 后置定语多 大量的名词化结构 等等
copper 生铜
(2) dog: 狗
(机械专业) 挡块
机械工程专业英语
2. 按照习惯搭配确定词义 e.g: (1) I have a short memory. 我的记忆力不好 (2) This biscuit eats short. 这种饼干吃起来松脆 (3) Indeed he has a short temper. 他确实是个急 性子
disadvantage 高速磨削不存在（知道）这个缺点。
机械工程专业英语 二、句子特点
1. 句子长（学会分解句子结构）
If a hard-grade wheel were to be used for grinding a hard material, the dull grains would not be pulled off from the bond quickly enough, thus impeding(阻 碍) the self-dressing process of the surface of the wheel and finally resulting in clogging(堵塞) of the wheel and burns on the ground surface.
《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
01
02
03
04
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
机械专业英语课件
Casting process is a manufacturing process in which molten metal is poured or injection and allowed to solidify in a suitably shaped mold cavity. During or after cooling, the cast part is removed from the mold and then processed for delivery （交货）. Casting processes and cast material technologies vary from simple to highly complex. Material and process selection depends on the part’s complexity and function, the product’s quality specification, and the projected cost level.
The molten material is poured into the pouring cup（浇口杯）, which is part of the gating system（浇注系统） that supplies the molten material to the mold cavity. The vertical part of the gating system connected to the pouring cup is the sprue （浇道）, and the horizontal portion is called the runner and finally to the multiple points where it is introduced to be mold cavity called the gates. Additionally there are extensions to the gating system called vents that provide the part for the built-up gases and the displaced air to vent to the atmosphere. Multi- multifunction, multidirectional, multimedia.
《机械专业英语unit》PPT课件
工业机器人现在正开始对工业进行一场革命。这 些机器人的样子和行为方式不很像人，但它们干的 是人类的工作。
revolutionize v. 革命，革命性变革
Robots are particularly useful in a wide variety of applications, such as material handling, spray painting, spot welding, arch welding, inspection, and assembly, current research efforts focus on creating a “smart” robot that can “see”, “hear, ”and “touch” and consequently make decisions.
Marcy: Ah, I see. The point here is that what we
show you are not other kinds of robots but industrial ones. We needn’t make them look like us humans. Mary: Well, I understand. Now could you tell us what these industrial robots can do for us? Marcy: Sure. These robots can do many things for us. They can help us, for example, to handle materials, spray paint, rescue people from the fire, and even help to explore deep oceans and outer-space. Tom: Uh, how great robots are! But what makes robots able to work for us so marvelously? spray painting 喷涂 marvelously奇迹般地,奇异地
revolutionize v. 革命，革命性变革
Robots are particularly useful in a wide variety of applications, such as material handling, spray painting, spot welding, arch welding, inspection, and assembly, current research efforts focus on creating a “smart” robot that can “see”, “hear, ”and “touch” and consequently make decisions.
Marcy: Ah, I see. The point here is that what we
show you are not other kinds of robots but industrial ones. We needn’t make them look like us humans. Mary: Well, I understand. Now could you tell us what these industrial robots can do for us? Marcy: Sure. These robots can do many things for us. They can help us, for example, to handle materials, spray paint, rescue people from the fire, and even help to explore deep oceans and outer-space. Tom: Uh, how great robots are! But what makes robots able to work for us so marvelously? spray painting 喷涂 marvelously奇迹般地,奇异地
《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.