机械专业英语课件7资料
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机械工程英语Unit 7
Unit 7 Metal Cutting
➢ importance of metal cutting ➢ Introduction of a typical cutting tool ➢ Chip Formation ➢ Shear zone ➢ Cutting Tool Materials ➢ Surface Finish ➢ Cutting Fluids
Fig 7.3 Three main types of chips a）Discontinuous chip b) Continuous chip c) Continuous chip with BUE
❖ Discontinuous Chip
The segmented chip separates into short pieces, which may or may not adhere to each other. Severe distortion of the metal occurs adjacent to the tool face, resulting in a crack that runs ahead of the tool. Eventually, the shear stress across the chip becomes equal to the shear strength of the material, resulting in fracture and separation.[1] With this type of chip, there is little relative movement of the chip along the tool face, Fig 7.3 (a).
The conditions which have an important influence on metal cutting ：
➢ importance of metal cutting ➢ Introduction of a typical cutting tool ➢ Chip Formation ➢ Shear zone ➢ Cutting Tool Materials ➢ Surface Finish ➢ Cutting Fluids
Fig 7.3 Three main types of chips a）Discontinuous chip b) Continuous chip c) Continuous chip with BUE
❖ Discontinuous Chip
The segmented chip separates into short pieces, which may or may not adhere to each other. Severe distortion of the metal occurs adjacent to the tool face, resulting in a crack that runs ahead of the tool. Eventually, the shear stress across the chip becomes equal to the shear strength of the material, resulting in fracture and separation.[1] With this type of chip, there is little relative movement of the chip along the tool face, Fig 7.3 (a).
The conditions which have an important influence on metal cutting ：
《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
《机械工程专业英语》课件
机械工程原理
深入研究机械运动、力学和设计方面的原理和方法。
机械工程设计
学习机械系统和组件的设计过程，包括CAD和仿真技术的应用。
学习资源
参考书籍
推荐几本经典的机械工程教材， 供学生参考和深入学习。
学习网站
介绍几个优质的在线学习平台， 提供丰富的课程和资源供学生学 习。
实践项目
鼓励学生参与实际机械工程项目， 提升实践能力和解决问题的能力。
2 学生建议和意见
鼓励学生提供对课程的建议和意见，帮助课程更好地满足学生的需求。
总结
课程概述
总结《机械工程专业英语》课程 的内容和目标，强调学生在学习 过程中的收获。
学习成果
强调学生通过学习该课程所获得 的知识和技能，对未来的几个学习机械工程领域知识 的途径，如继续学习、实践项目 和职业培训。
《机械工程专业英语》 PPT课件
这个PPT课件旨在介绍《机械工程专业英语》课程的内容，包括课程目标、学 习方法、重点知识点、学习资源、考试评估、学生反馈和总结。
课程介绍
本节将详细介绍《机械工程专业英语》课程的目标、内容和学习方法。帮助 学生了解课程的重要性和学习的方法。
重点知识点
机械工程概述
了解机械工程领域的基本概念、原理和应用。
考试评估
1 考试形式
说明考试的形式，如闭卷 考试、开卷考试或者实践 考核。
2 考试内容
列举考试涵盖的知识点和 要求，帮助学生有针对性 地复习。
3 考试时间
确定考试的日期和持续时 间，提醒学生合理安排学 习时间。
学生反馈
1 课程满意度调查
开展匿名调查，了解学生对课程的满意度和建议，持续改进教学质量。
深入研究机械运动、力学和设计方面的原理和方法。
机械工程设计
学习机械系统和组件的设计过程，包括CAD和仿真技术的应用。
学习资源
参考书籍
推荐几本经典的机械工程教材， 供学生参考和深入学习。
学习网站
介绍几个优质的在线学习平台， 提供丰富的课程和资源供学生学 习。
实践项目
鼓励学生参与实际机械工程项目， 提升实践能力和解决问题的能力。
2 学生建议和意见
鼓励学生提供对课程的建议和意见，帮助课程更好地满足学生的需求。
总结
课程概述
总结《机械工程专业英语》课程 的内容和目标，强调学生在学习 过程中的收获。
学习成果
强调学生通过学习该课程所获得 的知识和技能，对未来的几个学习机械工程领域知识 的途径，如继续学习、实践项目 和职业培训。
《机械工程专业英语》 PPT课件
这个PPT课件旨在介绍《机械工程专业英语》课程的内容，包括课程目标、学 习方法、重点知识点、学习资源、考试评估、学生反馈和总结。
课程介绍
本节将详细介绍《机械工程专业英语》课程的目标、内容和学习方法。帮助 学生了解课程的重要性和学习的方法。
重点知识点
机械工程概述
了解机械工程领域的基本概念、原理和应用。
考试评估
1 考试形式
说明考试的形式，如闭卷 考试、开卷考试或者实践 考核。
2 考试内容
列举考试涵盖的知识点和 要求，帮助学生有针对性 地复习。
3 考试时间
确定考试的日期和持续时 间，提醒学生合理安排学 习时间。
学生反馈
1 课程满意度调查
开展匿名调查，了解学生对课程的满意度和建议，持续改进教学质量。
机械类专业英语ppt课件
精选课件
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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18
❖ 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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15
❖ 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]
机械专业英语第七课--机器人
机器人的机械手完成机器人系统的具体工
作，它包括两个部分：机械部分和附属部分。 附属部分安装在机械手的基座上。基座固定在 工作现场的地板上。但有时基座也是可以移动 的，在这种情况下，基座安放在轨道上，用于 把机械手从一个位置移到另外的位置。
The appendage is the arm of the robot. It can be either a straight, movable arm or a jointed arm and gives the manipulator its various axes of motion. The jointed am is also known as an articulated arm. At the end of the arm, a wrist is connected. The wrist is made up of additional axes and a wrist flang. The wrist flang allows the robot user to connect different tooling to the wrist for different jobs.
不重要的，外围的
diseases of peripheral nerve 周围神经疾病
State-of-the-art 达到最新技术发展水平的 conjunction [kən`dʒʌŋkʃən] 连接词，连合，关连
hydraulic [hai`drɔ:lik]
水力的，水压的
hydraulic engineering geological exploration 水利工程地质勘察
pneumatic [nu:`mætik] 气胎，气动的（有空气的，气体学的）
机械制造技术英文PPT7
Positioning pin
Support plate
Figure.2-72
Figure2-73
Degree of freedom restricted by the bottom surface: Degree of freedom restricted by the short cylindrical pin on the left: The degree of freedom restricted by the diamond pin on the right:
Figure2-74
The thickness b of the edge cutting pin can be calculated by the following formula:
In the fபைடு நூலகம்rmula
The minimum diameter of the workpiece positioning hole
Knowledge point: the workpiece is positioned with a combined surface
In the actual processing process, the workpiece is often not a single surface positioning, but a combined surface positioning. Common ones include plane and plane combination, plane and hole combination, plane and outer cylindrical surface combination, plane and other surface combination, cone surface and cone surface combination, etc. The most commonly used in production is "one side, two holes" positioning, such as processing boxes, levers, covers, etc. This method has reliable positioning and convenient clamping, and it is easy to achieve uniform reference in the process and ensure the mutual position accuracy of the workpieces.
Unit-7-Lathes-机电专业英语-图文课件
1.Engine Lathes ［1］Engine lathes，of course，are general purpose
machines used in production and maintenance shops all over the world. Sizes range from small bench models to huge heavy duty pieces of equipment. Many of the larger lathes are equipped with auxiliary parts which are not commonly available in ordinary shops，such as automatic stops for the carriage.
Text & Translation
The first screw machines were designed to feed bar stock and wire used in making small screw parts. At present，however， the turret lathe is frequently used with a collet attachment，and the automatic screw machine can be equipped with a chuck to hold castings.
Text & Translation
In the single spindle automatic screw machine，a specific length of stock is automatically fed through the spindle to a machining area. At this point，the turret and cross slide move into position and automatically perform whatever operations are required. After the machined piece is cut off，stock is again fed into the machining area and the entire cycle is repeated.
machines used in production and maintenance shops all over the world. Sizes range from small bench models to huge heavy duty pieces of equipment. Many of the larger lathes are equipped with auxiliary parts which are not commonly available in ordinary shops，such as automatic stops for the carriage.
Text & Translation
The first screw machines were designed to feed bar stock and wire used in making small screw parts. At present，however， the turret lathe is frequently used with a collet attachment，and the automatic screw machine can be equipped with a chuck to hold castings.
Text & Translation
In the single spindle automatic screw machine，a specific length of stock is automatically fed through the spindle to a machining area. At this point，the turret and cross slide move into position and automatically perform whatever operations are required. After the machined piece is cut off，stock is again fed into the machining area and the entire cycle is repeated.
机械专业英语完整7PPT课件
工程材料和应用材料的系统工程设计最初都会涉及材 料的墨菲法则和材料应用法则。
可编辑课件
3
Murphy’s Law: If any material can fail, it will.
Laws of materials applications
(1) All materials are unstable.
Materials are the reality in a design.
如果现存的材料不具备必要的性能，或者只有新材料 开发出来才能制造，在设计仿真阶段就必须改动这些 材料的技术要求。在设计中材料是现实的。
可编辑课件
13
Paragraph 5
Figure 1 illustrates a simple schematic representation of a design process that includes design implementation.
除非开发出新的材料，否则由于材料不具有必要的性 能而不能实现的设计只能是一个永远不能成为现实的 概念。
可编辑课件
11
Prior to a fabrication step, materials specifications must be made depending upon the design requirements.
计算机辅助设计现在已用于设计过程，各种设计和设 计思想能被检验和仿真。
可编辑课件
10
Paragraph 4:
Even in the early design cycle, it is useful to have some concept of available materials.
即使在早期的设计循环中，具有一些材料的概念也是 有用的。
可编辑课件
3
Murphy’s Law: If any material can fail, it will.
Laws of materials applications
(1) All materials are unstable.
Materials are the reality in a design.
如果现存的材料不具备必要的性能，或者只有新材料 开发出来才能制造，在设计仿真阶段就必须改动这些 材料的技术要求。在设计中材料是现实的。
可编辑课件
13
Paragraph 5
Figure 1 illustrates a simple schematic representation of a design process that includes design implementation.
除非开发出新的材料，否则由于材料不具有必要的性 能而不能实现的设计只能是一个永远不能成为现实的 概念。
可编辑课件
11
Prior to a fabrication step, materials specifications must be made depending upon the design requirements.
计算机辅助设计现在已用于设计过程，各种设计和设 计思想能被检验和仿真。
可编辑课件
10
Paragraph 4:
Even in the early design cycle, it is useful to have some concept of available materials.
即使在早期的设计循环中，具有一些材料的概念也是 有用的。
机械类专业英语应用Unit 7
难句释义
• Fatty acids, as found in certain animal and vegetable oils, can be added in small quantities to the lubricant to give a friction-reducing quality distinct from the viscosity of the lubricant. • “distinct from”意为“不同于”，在本句中可译为“与…无关”。全句译 为：在润滑油中可以添加少量动物和植物油中提炼的脂肪酸来减小摩擦， 该现象与润滑油的粘度无关。
难句释义
• For multiple-thread screws, the lead is the distance of the nut advances in one revolution.
• “multiple-thread screws”意为“多头螺钉”，“lead”意为“导程”。全句 译为：对于多头螺钉，导程是指螺母旋转一圈沿螺钉旋进的距离。
难句释义
• The design of frictional devices is subject to uncertainties in the value of the coefficient of friction that must necessarily be used.
• “is subject to”意为“受…影响”。全句译为：摩擦装置的设计必须考虑摩 擦系数，因而会受摩擦系数大小不确定性的影响。
难句释义
• The radius of the groove is slightly larger than the radius of the ball, and a very slight amount of radial play must be provided.
《机械类专业英语》课件
《机械类专业英语》PPT 课件
这是一份关于《机械类专业英语》的PPT课件，涵盖了机械类专业英语的基础 知识、技能培训、实践案例和学习资料推荐。
第一部分：机械类专业英语基础知识
机械类词汇学习
掌握机械类专业中常用的英文词汇，扩展专业词汇量。
机械类专业常用句型
学习机械类专业中常见的句型，提高英语表达能力。
机械类专业常见缩写和术语解释
了解机械类专业中常用的缩写和术语，避免词汇歧义。
第二部分：机械类专业英语技能培训
机械类专业文档英文写作 技巧
分享撰写机械类专业文档的英文 写作技巧和注意事项。
机械类专业技术文献阅读 策略
介绍阅读机械类专业技术文献的 方法和技巧。
机械类专业领域英语口语 表达技巧
分享在机械类专业领域进行英语 口语表达的技巧和经验。
第三部分：机械类专业英语实践案例
1
机械类专业项目报告英文演讲
演示机械类专业项目报告时的英文演讲技巧和范例。
2
机械类专业跨文化交流中的英语技巧
探讨在机械类专业跨文化交流中使用英语的技巧和方法。
3
机械类专业国际会议英语能力培训
培养参加机械类专业国际会议时的英语交流能力和跨文化沟通技巧。
第四部分：机械类专业英语学习资料推荐
1 机械类英语在线学习 2 机械类英语词汇学习 3 机械类英语学习书籍
网站推荐
助手推荐
推荐
介绍几个优质的机械类英 语在线学习网站，提供学 习资习助手工具，帮 助提高词汇记忆。
推荐一些经典的机械类英 语学习书籍，助力学习进 步。
总结
通过本次《机械类专业英语》PPT课件，您将了解机械类专业英语的基础知识、 技能培训、实践案例和学习资料推荐，帮助您提升在机械类专业领域中的英 语能力。
这是一份关于《机械类专业英语》的PPT课件，涵盖了机械类专业英语的基础 知识、技能培训、实践案例和学习资料推荐。
第一部分：机械类专业英语基础知识
机械类词汇学习
掌握机械类专业中常用的英文词汇，扩展专业词汇量。
机械类专业常用句型
学习机械类专业中常见的句型，提高英语表达能力。
机械类专业常见缩写和术语解释
了解机械类专业中常用的缩写和术语，避免词汇歧义。
第二部分：机械类专业英语技能培训
机械类专业文档英文写作 技巧
分享撰写机械类专业文档的英文 写作技巧和注意事项。
机械类专业技术文献阅读 策略
介绍阅读机械类专业技术文献的 方法和技巧。
机械类专业领域英语口语 表达技巧
分享在机械类专业领域进行英语 口语表达的技巧和经验。
第三部分：机械类专业英语实践案例
1
机械类专业项目报告英文演讲
演示机械类专业项目报告时的英文演讲技巧和范例。
2
机械类专业跨文化交流中的英语技巧
探讨在机械类专业跨文化交流中使用英语的技巧和方法。
3
机械类专业国际会议英语能力培训
培养参加机械类专业国际会议时的英语交流能力和跨文化沟通技巧。
第四部分：机械类专业英语学习资料推荐
1 机械类英语在线学习 2 机械类英语词汇学习 3 机械类英语学习书籍
网站推荐
助手推荐
推荐
介绍几个优质的机械类英 语在线学习网站，提供学 习资习助手工具，帮 助提高词汇记忆。
推荐一些经典的机械类英 语学习书籍，助力学习进 步。
总结
通过本次《机械类专业英语》PPT课件，您将了解机械类专业英语的基础知识、 技能培训、实践案例和学习资料推荐，帮助您提升在机械类专业领域中的英 语能力。
《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.
Lesson_7__机械英语
2011-5-5
《机械工程专业英语教程》
2
Rivet A rivet is a metal pin with a head used to fasten two or more materials together. 铆钉：铆钉是一头有帽的金属钉， 铆钉：铆钉是一头有帽的金属钉，用来将两种或多种材料紧 固在一起。 固在一起。
• • • • • • •
nuisance [‘nju:sns] n. 讨厌之事、人，损害 讨厌之事、 smoke nuisance..烟害 烟害 telephone nuisance..电话骚扰 电话骚扰 rattle [‘rætl] v. 使...嘎嘎响 喀拉响 嘎嘎响,n. 嘎嘎响 spring [spriŋ] n. 春天 弹簧 跳跃 泉水 春天,弹簧 跳跃,泉水 弹簧,跳跃 The cat made a spring at the mouse. 猫向老鼠扑去。 猫向老鼠扑去。
因此，在为一个特定的用途选择紧固件时， 因此，在为一个特定的用途选择紧固件时， 应该考虑到上述各种可能性。 应该考虑到上述各种可能性。
3. Springs are mechanical members which are designed to give a relatively large amount of elastic deflection under the action of an externally applied load. •弹簧是一种能够在外载荷作用下，产生相 弹簧是一种能够在外载荷作用下， 弹簧是一种能够在外载荷作用下 当大的弹性变形的机械零件。 当大的弹性变形的机械零件。
• proportional [prə'pɔ:ʃənl] a. 成比例的 相 成比例的,相 ɔʃ 称的 • Weight should be proportional to height. • 重量应该是比例与高度。 重量应该是比例与高度。 • suspension [səs'penʃən] n. 悬挂 未决 中 悬挂,未决 未决,中 ʃ 止 • She appealed against her suspension. • 她对被停职一事已经上诉。 她对被停职一事已经上诉。 • How the suspension of its performance? • 其悬架性能如何？ 其悬架性能如何？
三峡大学机械专业英语-第7课PPT课件
10 Machine design
Laboratory tests, models, and prototypes help considerably in machine design. Laboratories furnish much of the information needed to establish basic concepts; however, they can also be used to gain some idea of how a product will perform in the field.
The scoutplane without man-made • The robot used for getting rid
controlling（无人侦察机）
of bomb(排爆机器人)
3
11 Robots, NC and CNC
Over the past two decades the robot has been introduced into industry to perform many monotonous and often unsafe operations which in the past had caused both boredom and stress among employees. Because robots can perform certain basic tasks more quickly and accurately than humans they are being increasingly used in various manufacturing industries. In order, for most of the larger manufacturing industries such as the automotive industry, to remain competitive, it has been necessary for them to introduce robots on quite a large scale .
Laboratory tests, models, and prototypes help considerably in machine design. Laboratories furnish much of the information needed to establish basic concepts; however, they can also be used to gain some idea of how a product will perform in the field.
The scoutplane without man-made • The robot used for getting rid
controlling（无人侦察机）
of bomb(排爆机器人)
3
11 Robots, NC and CNC
Over the past two decades the robot has been introduced into industry to perform many monotonous and often unsafe operations which in the past had caused both boredom and stress among employees. Because robots can perform certain basic tasks more quickly and accurately than humans they are being increasingly used in various manufacturing industries. In order, for most of the larger manufacturing industries such as the automotive industry, to remain competitive, it has been necessary for them to introduce robots on quite a large scale .
机械工程专业英语Unit 7
❖ Higher the rake angle, better is the cutting and less are the cutting forces, increasing the rake angle reduces the metal backup available at the tool rake face. This reduces the strength of the tool tip as well as the heat dissipation through the tool. 前角越大，则切 削越好且切削力越小，增加前角可以减少刀具前倾面上产生的金属阻塞。 但这会和减少通过刀具散发的热量一样减少刀尖强度。
化形式如图7.1所示。要注意的重要特征如下。
① Rake angle（前角）
❖ It is the angle between the face of the tool called the rake face and the normal to the machining direction. 它是被称为前倾面的刀具面与 垂直机加工方向的夹角。
❖ In USA, more than $100 billions are spent annually on machining and related operations. 在美国，每年花在机加工及其相关作业上的 费用都多于千亿美元。
❖ A large majority (above 80%) of all the machine tools used in the manufacturing industry have undergone metal cutting. 用于制造 业的全部机床中的大多数(多于80%)都经历过金属切削。
化形式如图7.1所示。要注意的重要特征如下。
① Rake angle（前角）
❖ It is the angle between the face of the tool called the rake face and the normal to the machining direction. 它是被称为前倾面的刀具面与 垂直机加工方向的夹角。
❖ In USA, more than $100 billions are spent annually on machining and related operations. 在美国，每年花在机加工及其相关作业上的 费用都多于千亿美元。
❖ A large majority (above 80%) of all the machine tools used in the manufacturing industry have undergone metal cutting. 用于制造 业的全部机床中的大多数(多于80%)都经历过金属切削。
机械专业英语课件
口语表达
发音和语音训练 常用词汇和表达方式 情景对话模拟练习 听力理解能力提升
写作技能
掌握专业词汇和术语
学会撰写科技论文和报告
了解英语论文的写作规范 和格式
掌握科技论文的常用句型 和表达方式
05
机械专业英语应用场景
技术文献阅读与翻译
技术文献类型：包括技术报告、 研究论文、专利等
翻译技巧：保持准确性、流畅性， 注意文化差异
课件形式多样：包括文本、图片、 视频等多种形式
添加标题
添加标题
添加标题
添加标题
课件内容丰富：涵盖机械专业的 各个方面
注重实践应用：结合实际案例， 注重实践操作和应用能力的培养
07
学习建议与展望
学习方法建议
制定学习计 划：合理安 排时间，确 保每天有足 够的学习时 间
注重实践： 通过实验、 实践等方式 加深对理论 知识的理解
研究生及教师
从事机械行业的技术人员
对机械专业感兴趣的人士
03
机械专业基础知识
机械专业词汇
机械专业基础词汇
常用机械部件名称
机械加工工艺流程
常用工具和测量仪器
机械原理与设计
机械原理：介绍 机械的基本原理、 机构、传动系统 等基础知识
机械设计：介绍 机械设计的基本 原则、方法、步 骤以及常用的设 计软件等
机械制造工艺： 介绍机械制造的 基本工艺、加工 方法、设备等
机械工程材料： 介绍常用的机械 工程材料及其性 能特点、应用范 围等
制造工艺与设备
制造工艺：介绍机械制 造的基本流程，包括毛 坯制造、零件加工、热 处理等关键环节。
设备：介绍常用的机 械加工设备，如车床、 铣床、磨床、钻床等， 以及它们的基本原理 和操作方法。
机械专业专业英语讲义PPT课件
第16页/共192页
9. tension/compression 10.strain/microstrain 11.cross-section 12.engineering materials 13.ferrous alloy/non-ferrous alloy 14. elastic limit 15. modulus of elasticity
一、课程性质与学习任务
1 、课程性质：是一门专业特色选修课。 2 、学习任务：掌握机制专业有关的专业术 语,能够阅读、理解、并准确翻译科技
文献。
二、课程特点及重点、难点
1 、课程特点：本课程是在大学英语及所学专业 课的基础上开设的,文章的专业术语多,句子长,且 多用被动语态,理解需与专业知识相结合。
第23页/共192页
8.static/dynamic force 9.approximate/approximation Language Points: 1.It is clear that 2.It is preferable to do 3.applicable/tractable
第24页/共192页
第14页/共192页
6.A particular form of elasticity which applies to a large range of engineering materials ， at least over part of their load range ， produces deformation which are proportional to the loads producing them.
eg. Pistons that are moving up are moving at different speeds than pistons that are moving down. 2）注意固定搭配。如：convert … into,consist of等。
9. tension/compression 10.strain/microstrain 11.cross-section 12.engineering materials 13.ferrous alloy/non-ferrous alloy 14. elastic limit 15. modulus of elasticity
一、课程性质与学习任务
1 、课程性质：是一门专业特色选修课。 2 、学习任务：掌握机制专业有关的专业术 语,能够阅读、理解、并准确翻译科技
文献。
二、课程特点及重点、难点
1 、课程特点：本课程是在大学英语及所学专业 课的基础上开设的,文章的专业术语多,句子长,且 多用被动语态,理解需与专业知识相结合。
第23页/共192页
8.static/dynamic force 9.approximate/approximation Language Points: 1.It is clear that 2.It is preferable to do 3.applicable/tractable
第24页/共192页
第14页/共192页
6.A particular form of elasticity which applies to a large range of engineering materials ， at least over part of their load range ， produces deformation which are proportional to the loads producing them.
eg. Pistons that are moving up are moving at different speeds than pistons that are moving down. 2）注意固定搭配。如：convert … into,consist of等。
《机械工程专业英语》PPT课件
•
•
Mechanical Engineering English
Dialogue Two
译文
• Mr. King: How about the activities in your school? • Lily: It blooms in every corner of campus.
Associations of different varieties organized by students with the same interest develop various popular activities such as Foreign Languages Festival and Computer Science Festival.
Mechanical Engineering English
• • • • • •
interrelate [ .intə(:)ri'leit ] v. 互相关连,相关 ecology [ i(:)'kɔlədʒi ] n. 生态学 reinstate [ 'ri:in'steit ] v. 恢复; vt. 使恢复原有的职位 assurance [ ə'ʃuərəns ] n. 保证,确信,保险 thrust [ θrʌst ] n. 推力,刺,力推; v. 插入,推挤,刺 incorporate [ in'kɔ:pəreit ] a. 合并的,公司组织的,具 体化的; v. 合并,组成公司,具体表现
Mechanical Engineering English
Lesson 3
机械工程 专业英语
Mechanical Engineering Design
机械工程专业英语课件-经典
Lesson 37 Milling Machines and Grinding Machines Lesson 38 Drilling Operations Lesson 44 Nontraditional Manufacturing Processes Lesson 62 The Computer and Manufacturing Lesson 63 Computers in Design and Manufacturing Lesson 64 Computer-Aided Analysis of Mechanical Systems Lesson 65 Computer-Aided Process Planning Lesson 66 Numerical Control Lesson 71 Industrial Robots Lesson 77 Technical Report Elements Lesson 78 Writing the Technical Report Extra lesson 1 English for International Academic Exchange Extra lesson 2 Expression of Numbers, Signs, Equations and Graphs in English Extra lesson 3 Professional Literature and Patent Retrieval
2.中国专利检索：/sipo/zljs/
3.中国专利法律状态检索：/sipo/zljs/searchflzt.jsp
4.中国专利实施数据库（中国专利信息中心）： /aboutus/actualize/shishiku/tuiguang_edit.asp
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计算机辅助设计现在已用于设计过程，各种设计和设 计思想能被检验和仿真。
9
Paragraph 4:
Even in the early design cycle, it is useful to have some concept of available materials.
即使在早期的设计循环中，具有一些材料的概念也是 有用的。
压力和环境共同（in concert）作用会造成屈服，例 如，应力腐蚀裂纹。蠕变温度影响和应力—温度影响 都会导致性能降低、零件和系统失败。
7
The design process
Paragraph 3:
The design process usually begins with a specification of a solution.
Creep(蠕变) is an example. Given enough time, failure(失效) can be calculated
to occur in all materials under creep stress.
在压力作用下，所有材料都会有变化。蠕变(creep) 是一个例子。在蠕变压力作用下，若有足够的时间， 所有材料一定会产生n 蠕变变形
Creep fracture 蠕变断裂
6
Stress and environment can act in concert to cause failure, for example, stress corrosion cracking.
Creep-temperature effects and stresstemperature effects can contribute to the degradation of properties and components and system failure.
degraded in particular environments.
虽然这些法则是显见的、不容置疑的，我们还要详细 描述这些法则，特别是材料应用法则。所有材料确实 是不牢固的。即使像白金（platinum）这样的材料在 特殊环境中也会性能减弱。
4
Under stress(应力， strain 应变), all materials respond to that stress.
Although they are both obvious and incontrovertible(无可争辫的), we might elaborate upon these laws, especially the laws of materials applications.
All materials are indeed unstable. Even such materials as platinum can be
We sometimes allude to a design cycle, but the process may contain a design cycle plus design implementation, which involves actual production based upon the design.
设计循环涉及最初的构想、草图、在详细描述阶段绘 制工作图的知识。
Computer-aided design (CAD, CAM计算机辅 助制造) is now employed to implement a cycle in which various designs or design ideas may be tested or simulated.
机械专业英语课件7
Paragraph 1
Any consideration of engineering materials and engineering design of systems utilizing materials must initially deal with(涉及到) Murphy’s Law for Materials systems and the laws of materials applications:
as stable as its weakest or most unstable component.
墨菲法则：如果任何材料有可能出问题，它 （系统）终将出问题。
材料应用法则：（1）任何材料都是不牢固的； （2）材料系统的强度和牢固程度仅仅像它最 薄弱的、最不牢固的部分。
爱德华·墨菲
3
Paragraph 2:
设计过程通常从解决方案的详细描述开始。有时我们 把设计过程说成是设计循环，但它或许是一个设计循 环外加依赖于设计而进行实际生产的设计实施过程。
8
The design cycle can involve the original thoughts, sketches, and knowledge that in the specification stage produce engineering drawings.
工程材料和应用材料的系统工程设计最初都会涉及 材料的墨菲法则和材料应用法则。
2
Murphy’s Law: If any material can fail, it will. Laws of materials applications (1) All materials are unstable. (2) The materials system is only as strong or
Designs that cannot be achieved because materials with requisite properties do not exist are only concepts that will never be a reality unless a material or materials are developed.
9
Paragraph 4:
Even in the early design cycle, it is useful to have some concept of available materials.
即使在早期的设计循环中，具有一些材料的概念也是 有用的。
压力和环境共同（in concert）作用会造成屈服，例 如，应力腐蚀裂纹。蠕变温度影响和应力—温度影响 都会导致性能降低、零件和系统失败。
7
The design process
Paragraph 3:
The design process usually begins with a specification of a solution.
Creep(蠕变) is an example. Given enough time, failure(失效) can be calculated
to occur in all materials under creep stress.
在压力作用下，所有材料都会有变化。蠕变(creep) 是一个例子。在蠕变压力作用下，若有足够的时间， 所有材料一定会产生n 蠕变变形
Creep fracture 蠕变断裂
6
Stress and environment can act in concert to cause failure, for example, stress corrosion cracking.
Creep-temperature effects and stresstemperature effects can contribute to the degradation of properties and components and system failure.
degraded in particular environments.
虽然这些法则是显见的、不容置疑的，我们还要详细 描述这些法则，特别是材料应用法则。所有材料确实 是不牢固的。即使像白金（platinum）这样的材料在 特殊环境中也会性能减弱。
4
Under stress(应力， strain 应变), all materials respond to that stress.
Although they are both obvious and incontrovertible(无可争辫的), we might elaborate upon these laws, especially the laws of materials applications.
All materials are indeed unstable. Even such materials as platinum can be
We sometimes allude to a design cycle, but the process may contain a design cycle plus design implementation, which involves actual production based upon the design.
设计循环涉及最初的构想、草图、在详细描述阶段绘 制工作图的知识。
Computer-aided design (CAD, CAM计算机辅 助制造) is now employed to implement a cycle in which various designs or design ideas may be tested or simulated.
机械专业英语课件7
Paragraph 1
Any consideration of engineering materials and engineering design of systems utilizing materials must initially deal with(涉及到) Murphy’s Law for Materials systems and the laws of materials applications:
as stable as its weakest or most unstable component.
墨菲法则：如果任何材料有可能出问题，它 （系统）终将出问题。
材料应用法则：（1）任何材料都是不牢固的； （2）材料系统的强度和牢固程度仅仅像它最 薄弱的、最不牢固的部分。
爱德华·墨菲
3
Paragraph 2:
设计过程通常从解决方案的详细描述开始。有时我们 把设计过程说成是设计循环，但它或许是一个设计循 环外加依赖于设计而进行实际生产的设计实施过程。
8
The design cycle can involve the original thoughts, sketches, and knowledge that in the specification stage produce engineering drawings.
工程材料和应用材料的系统工程设计最初都会涉及 材料的墨菲法则和材料应用法则。
2
Murphy’s Law: If any material can fail, it will. Laws of materials applications (1) All materials are unstable. (2) The materials system is only as strong or
Designs that cannot be achieved because materials with requisite properties do not exist are only concepts that will never be a reality unless a material or materials are developed.