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《机械工程专业英语》课件

《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。

机械工程专业英语教程 (第5版)课件 (45)[9页]

机械工程专业英语教程 (第5版)课件 (45)[9页]
relationship with the public 公共关系：与公众建立并促进一种有利关系的艺术或科 学
2. The methods and activities employed to establish and promote
a favorable relationship with the public 公共关系策略与实施：用于与公众建立并提高一种有利 关系的方法或活动
Production Department. The production department sets up and uses the tools and machines to make the
product.
2. research and development 意为“研究和开发，研制”， set up意为“调试”。这段与下一段第一句可译为：
which later stages are based or judged. • 原型：一种原初的样式、形式或例证，是作为其后期阶段
的基础的模型。
• Trademark
• A name, symbol, or other device identifying a product, officially registered and legally restricted to the use of the
Lesson 51 Careers in Manufacturing
• Terminology • Text tour
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《机械工程专业英语教程》
1
Terminology
• Prototype
• An original type, form, or instance that serves as a model on

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机械工程专业英语教程 (第5版)课件 (63)[10页]
series, as for the robots shown in Fig. 72.1.
1．kinematic pair 运动副（由两个构件直接接触而组成 的可动的连接称为运动副） 。
操作机 操作机是一个能够提供类似人的手臂和手腕 运动的机械装置。操作机通常由杆件（它们的功能类似 于人体中的骨头）和关节（也被称为“运动副”）以串 联的方式连接而成（如图72.1中的那些机器人）。
usually in several degrees of freedom.
• 操作机 用来抓取和（或）移动物体、由一些相互铰接或 相对滑动的构件组成的多自由度机器。
• End effector device specifically designed for attachment to the mechanical interface to enable the robot perform its task.
《机械工程专业英语教程》
Mechanical grippers 机械夹持器
7
Hydraulic actuators utilize high-pressure fluid such as oil to transmit forces to the point of application desired. A hydraulic actuator is very similar in appearance to that of pneumatic actuator. Hydraulic actuators are designed to operate at much higher pressure (typically between 7 and 17 MPa). They are

机械工程专业英语教程 (第5版)课件 (52)[10页]

机械工程专业英语教程 (第5版)课件 (52)[10页]
1．under certain stated conditions 意为“在某些规定的条 件下”。全句可译为：
这个定义的内在含义是在某些规定的条件下或环境中， 以及在一个规定的时间长度内来实现其功能。
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《机械工程专业英语教ห้องสมุดไป่ตู้》
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That is, reliability may also be viewed as meeting requirements, the first time and every time. Products may have quality yet not have reliability. Products with reliability will have quality as an
statistical
Of, relating to, or employing statistics or the principles of statistics. 统计的：统计的、与之有关的、运用统计学或统计原理的
3
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《机械工程专业英语教程》
Bathtub curve 浴盆曲线 (故障率曲线) 在产品整个使用寿命期间，典型的失效率变化曲线，形似浴盆
1. An assurance by the seller of property that the goods or property
are as represented or will be as promised. 保证：货物卖主所作的货物同样品无差别或与许诺相同的保 证。
2. A guarantee given to the purchaser by a company stating that a
Consistency, via such techniques as statistical process control (SPC), is the key to creating products that can be tested and demonstrated as being reliable.[5] 5．statistical process control 意为“统计过程控制”。全句可 译为：通过诸如统计过程控制这类技术所获得的一致性是制 造产品的关键，产品的可靠性可以通过试验来证实。

机械工程专业英语精品PPT课件

机械工程专业英语精品PPT课件

专利检索资源荟萃（二）
8.美国专利检索： 9.欧洲专利检索： 10.从ESPACENET数据库提取世界各Байду номын сангаас专利文献的方法（国知局提供）： 11.欧洲专利局免费专利数据库（含欧洲各国家入口）： 12.欧洲专利局专利数据高级检索（含欧洲、PCT和世界范围三个数据库）： 13.欧洲专利法律状态查询： 14.PCT专利检索： 15.英国专利检索：
26. 印度专利数据库： 27.新加坡综合专利数据库（含美国、新加坡、PCT、欧洲专利、英国、中国、 加拿大、韩国、中国台湾、日本、泰国）： 28.香港专利检索：Þx.html 29.澳门专利检索：
30. google专利搜索： 31.日本专利检索：
机械工程专业信息检索
ASME-American Society of Mechanical Engineers美国机械工程师协 会 SAE-Society of Automobile Engineers美国汽车工程师协会 EI-Engineering Index工程索引 IEEE-Institute of Electrical and Electronics Engineers (美国)电机及 电子工程师学会 IET-The Institution of Engineering and Technology英国工程技术学 会（IET）系英国电气工程师学会（IEE）和英国企业工程师学会 （IIE）于2006年初合并组建而成 NTIS-National Technical Information Service美国国家技术情报服务 局 UMI-美国UMI公司，学位论文的信息服务（ProQuest ）。 ISO-International Organization for Standardization国际标准化组织。

机械工程专业英语教程 (第5版)课件 (44)[8页]

机械工程专业英语教程 (第5版)课件 (44)[8页]

Hydrocarbon
Any of numerous organic compounds, such as benzene and methane, that contain only carbon and hydrogen 碳氢化合物：只含有碳和氢的多种有机化合物的一种， 如苯和甲烷
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消费需求可以作为激励企业提供产品的促进因素。
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《机械工程专业英语教程》
The output of manufacturing system is a product. Look around you. Products of manufacture are everywhere. Goods can be classified into consumer and capital kinds.[4] 4． consumer and capital kind这里指 “consumer goods and capital goods”， 意为“消费品和生产资料”。全句可译为： 商品可以分成为消费品和生产资料。
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《机械工程专业英语教程》
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Profit is an excess that allows the payment of dividends to owners and shareholders, the purchase of new equipment and plants, and the payment of taxes.[2] 2．excess 意为“超出额，超出量”，这里指“收入超出成本 的数额”。全句可译为：
consumer products.[5] 5. consumer product 意为“用于消费的产品”。全句可译为: 生产资料是制造企业购买的产品，被用来制造用于消费的 产品。

机械工程专业英语教程 (第5版)课件 (14)[10页]

机械工程专业英语教程 (第5版)课件 (14)[10页]
• 平移：一个物体的运动，指该物体的每个点的移动都平行于 这个物体上任何一个点的移动，并且距离相同；非转动性位 移。
Density The mass per unit volume of a substance under specified conditions of pressure and temperature
6
《机械工程专业英语教程》
Pure translation All points on the body describe parallel (rectilinear or curvilinear) paths. A reference line drawn on the body changes its linear position but does not change its angular orientation (see Fig. 15.2) .[5] 5. 物体上所有的点都沿平行（直线或曲线的） 轨迹运动。在物体上所画的一条参考线，只会 改变它的位置，而不会改变它的角度方向。
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《机械工程专业英语教程》
2
• Translation • Motion of a body in which every point of the body moves parallel
to and the same distance as every other point of the body; nonrotational displacement.
• into components along two axes in the plane. [4]
• 4. resolve into 意为“分解为”。全句可译为：在平面或 者二维空间，复杂运动变成了绕一个（垂直于这个平面 的）轴线的转动和同时发生的可以被分解为在这个平面

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机械工程专业英语教程 (第5版)课件 (51)[10页]
applicant for coverage or a policy • 保险业务受理人：保险代理人，他评估为保险总额或保
险单登记申请人承担的风险
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《机械工程专业英语教程》
2
Air conditioner 空调器
Industria robot 工业机器人
Aircraft engine
另一方面，如果公众以较低的价格购买了产品，随后表 示他们对使用不方便或故障修理费用的不满，是否会长 期地给这家公司的其它产品带来设计质量不好和工艺质 量低劣的声誉呢？
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7Hale Waihona Puke 《机械工程专业英语教程》For, if the equipment is expensive, the buyer is likely to have a staff of engineers or outside consultants who are able to assess the cost trade-offs and determine their impact on the buyer’s operations. With the robot, for example, a trade-off must be made between purchase price and production lost through
willingness to offer a longer warranty than the competition?
对空调器的可靠性要求，在很大程度上取决于消费者的心 理因素。购买者在多大程度上愿意付较高的价钱以节省其后 的修理或更新费用？产品价格是显而易见的，但是如何使公 众对可靠性加深印象呢？具体的做法有：可以提供关于空调 器特点的信息和广告，或者愿意提供比竞争对手更长的保 修期。

机械工程专业英语教程 (第5版)课件 (10)[9页]

机械工程专业英语教程 (第5版)课件 (10)[9页]
2. pattern 在这里指“铸模”。全句可译为： 尽管铸铁比较便宜，但每个铸件都需要有一个铸模。
3. high-volume 意为“大批量的”。全句可译为： 小尺寸、大批量的机床通常采用铸铁机架，因为它们可以 很容易地分担铸模的成本。
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《机械工程专业英语教程》源自7Advanced forms of these materials, including those with polymer, metal, and ceramic matrices, may change machine tool design dramatically. Both matrix and reinforcing material can be tailored to provide strength in specific axes.[4]
4. reinforcing material 意为“增强材料”。全句可译为： 可以使基体和增强材料在某一个指定的轴线方向上具有所需 要的强度。
• 铸铁：一种坚硬、脆性、不可锻压, 能够铸造成一定的形状 的铁碳合金，含有2%至4.5%的碳、0.5%至3%的硅和少量 的硫、锰和磷。
Castings 铸件
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《机械工程专业英语教程》
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• Composite
• A complex material in which two or more distinct, structurally complementary substances, especially metals, ceramics, glasses, and polymers, combine to produce structural or functional properties not present in any individual component

机械工程专业英语精ppt课件

机械工程专业英语精ppt课件
7.中国专利数据库检索系统：/Search/CN/
专利检索资源荟萃（二）
8.美国专利检索：/patft/index.html 9.欧洲专利检索：/ 10.从ESPACENET数据库提取世界各国专利文献的方法（国知局提供）： /sipo/wxfw/ytwggsjkjs/ytwzlsjkjs/ESPACENET.doc 11.欧洲专利局免费专利数据库（含欧洲各国家入口）： /access/index.en.htm 12.欧洲专利局专利数据高级检索（含欧洲、PCT和世界范围三个数据库）： /advancedSearch?locale=en_ep 13.欧洲专利法律状态查询：/portal/public/registerplus 14.PCT专利检索：http://www.wipo.int/pctdb/en/ 15.英国专利检索：/search/index.htm
专利检索资源荟萃（一）新！专利搜索网址：/ 1.因特网专利数据库介绍（中华人民共和国国家知识产权局）： /sipo//wxfw/ytwzlsukjs/ytwzlsjkjs/200508/t20050816_67485. htm
机械工程专业英语ቤተ መጻሕፍቲ ባይዱ
Subject-Based English for Mechanical Engineering
机械与电气工程学院
2020/4/27
教学要求及目的
了解专业英语的语法特点，熟悉专业词汇， 逐步培养学生具有比较熟练的专业文献阅 读理解能力、翻译能力和英文学术论文的 写作能力。 掌握国外英文专利和文献资料的查询方法， 能以英语为工具，获取本专业所需信息。 了解国际学术交流的常用表达方式。
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

机械工程专业英语教程 (第5版)课件 (28)[11页]

机械工程专业英语教程 (第5版)课件 (28)[11页]
that will perform the needed functions.
“需要是发明之母”这句古老的谚语现在仍然是正确的。设计 是从实际或者假想的需要开始的。现有的设备可能需要在耐用 性、效率、重量、速度或成本等方面做进一些改进工作，也可 能需要有新的设备来完成以前由人来做的工作，例如物料搬运 或产品装配。当目标完全或部分被确定以后，设计工作的下一
Lesson 31 Some Rules for Mechanical Design
• Terminology
• Text tour
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1
Terminology
Conception 1. The ability to form or understand mental concepts and
6
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《机械工程专业英语教程》
丝锥和板牙
7
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《机械工程专业英语教程》
Text tour
The old saying that “necessity is the mother of invention” is still true. Designing starts with a need, real or imagined. Existing apparatus may need improvements in durability, efficiently, weight, speed, or cost. New apparatus may be needed to perform a function previously done by men, such as material handling or product assembly. With the objective wholly or partly defined, the next step in design is the conception of mechanisms and their arrangements

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机械工程专业英语教程 (第5版)课件 (32)[12页]

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Centerless grinder 无心磨床
《机械工程专业英语教程》
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Text tour
Milling machines are among the most versatile and useful machine tools because they are capable of performing a variety of cutting operations. The first milling machine was built in 1818 by Eli Whitney. There is a large selection of milling machines available with numerous features.
Lesson 35 Milling Machines and Grinding Machines
• Terminology
• Text tour
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《机械工程专业英语教程》
1
Terminology
Horizontal milling machine
Vertical milling machine
万能分度头（见图35.3）是最常 用的铣床附件之一。它是一个能 够容易地和精确地将工件转动预 定角度的夹具。其典型用途是铣 削零件的多边形表面和加工齿轮 的轮齿。分度头也可以用在包括 钻床和磨床在内的许多其他种类 的机床上。
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《机械工程专业英语教程》
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Grinding is one of the most widely used methods of finishing parts to extremely close tolerances and low surface roughness. There are many types of grinding machines. The two most widely used are the cylindrical and surface grinders. Other classes of grinding machines include centerless grinders,

机械工程专业英语教程 (第5版)课件 (23)[9页]

机械工程专业英语教程 (第5版)课件 (23)[9页]

4
The allocation of proper production tolerances is therefore a most important task if the finished product is to achieve its intended purpose and yet be economical to produce. The size of the tolerances, as specified by the designer, depends on the many conditions pertaining to the design as well as on past experience with similar products if such experience is available.
Lesson 26 Dimensional Tolerance
• Terminology • Text tour
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《机械工程专业英语教程》
1
Terminology
Ambiguity Doubtfulness or uncertainty as regards interpretation 模糊不清，不明确：解释有疑问或不确定.
both parties 双边的，双方的：由双方共同影响或承担的, 双方受约 束的
《机械工程专业英语教程》
3
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Text tour
The engineer in industry is constantly faced with the fact that no two machine parts can ever be made exactly the same. He learns that the small variations that occur in repetitive production must be considered in the design so that the tolerances placed on the dimensions will restrict the variations to acceptable limits. The tolerances provide zones in which the outline of finished part

机械工程专业英语教程 (第5版)课件 (59)[9页]

机械工程专业英语教程 (第5版)课件 (59)[9页]
hydraulic motors are also occasionally used.
2. machining table意为“机床工作台”全句可译为：电动 机的转动会带动滚珠丝杠副转动，并使机床工作台产生运 动。
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《机械工程专业英语教程》
The simplest type of electric motor used in CNC positioning systems is the stepper motor (sometimes called a stepping motor). A stepper motor rotates a fixed number of degrees when it receives an electrical pulse and then stops until another pulse is received. [3]
1. screw这里指“丝杠”全句可译为： 驱动系统由丝杠和电动机组成，它最终会把零件加工程 序转化为运动。
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《机械工程专业英语教程》
4
Drive motors are the second specialized component in the drive system. The turning of the motor will turn the ball screw to directly cause the machining table to move.[2] Several types of electric motors are used on CNC control systems, and
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液压马达
Stepper motor 步进电动机 3 《机械工程专业英语教程》

机械工程专业英语教程 (第5版)课件 (60)[9页]

机械工程专业英语教程 (第5版)课件 (60)[9页]
Hands-on Involving active participation, applied, as opposed to theoretical 实践的：参与实践活动的, 应用的，与理论的相对
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《机械工程专业英语教程》
Text tour
Skillful part-programmers are a vital requirement for effective utilization of NC machine tools. Upon their efforts depend the operational efficiency of those machines and the financial payback of the significant investment in the machines themselves, the plant’s NCsupport facilities, and the overhead costs involved.
编程人员对其要进行编程的数控机床的性能应该 有透彻的了解，还要了解车间中其他机床的基本 性能。他们还应该在金属切削原理和实践、刀具 的切削能力、工件夹具和夹具技术等方面有广博 的知识。
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《机械工程专业英语教程》
Experts in the NC and training fields typically agree on these qualifications and requirements—adding such subsidiary details as a knowledge of blueprint reading, machinability of different metals, use of shop measuring instruments, tolerancing methods, and safety practices.

机械工程专业英语教程 (第5版)课件 (25)[9页]

机械工程专业英语教程 (第5版)课件 (25)[9页]

《机械工程专业英语教程》
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Tolerance symbols: alphanumerical symbols giving the specifications of tolerances and fits; the basic size is a number, followed by the fundamental deviation letter and the IT number, which combined give the tolerance zone; uppercase letters indicate the fundamental deviations for holes, and lowercase letters indicate fundamental deviations
in roughness height measurements.
表面缺陷：不经常出现或者在很大区间内才会出现的表 面瑕疵，其中包括裂纹、气孔、微细裂纹、划痕等。表 面缺陷的影响在粗糙度的高度测量中通常会被忽略。
《机械工程专业英语教程》
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《机械工程专业英语教程》
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Reamers 铰刀
International tolerance (IT) grade
A series of tolerances that vary with basic size to provide a
Lesson 28 Tolerances and Surface Roughness
• Terminology
• Text tour
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《机械工程专业英语教程》
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机械工程专业英语课件L

机械工程专业英语课件L
Helical gears subject the shaft bearings to both radial and thrust loads.
斜齿轮使轴承承受径向力和轴向力。 When the thrust loads become high or are
objectionable for other reasons, it may be desirable to use double helical gears. 当轴向力过大或由于别的原因而产生不利影响时， 那就可能需要使用人字齿轮。
A pair of meshed crossed helical gears usually have the same hand; that is, a right-hand driver
goes with a right-hand driven. 一对相互啮合的交错轴斜齿轮通常具有同样的齿 向，即右旋主动齿轮跟右旋从动齿轮相啮合。
EnglishforMechanicalEngineering
机械工程专业英语
机械工程专业英语
Lesson 21 Helical, Worm and Bevel Gears
一、预备知识
齿轮机构可以用来传递空间任意两轴间的运动。
? 两平行轴间的齿轮传动：
直齿圆柱齿轮：重叠系数太小，冲击大，噪音大 斜齿圆柱齿轮：重叠系数增大，但产生轴向力
பைடு நூலகம்
The helix angle is the same on each gear, but one gear must have a right-hand helix and the other a
left-hand helix.
两个齿轮的螺旋角相等，但一个齿轮必须右旋， 而另一个齿轮必须是左旋。

机械工程专业英语教程 (第5版)课件 (46)[11页]

机械工程专业英语教程 (第5版)课件 (46)[11页]

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There are strong incentives to buy existing components from vendors. If the quantity to be purchased is large enough, most vendors will work with the product designer and modify existing components to meet the needs of the new product.
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《机械工程专业英语教程》
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Text tour
In many companies cost estimating is accomplished by a professional who specializes in determining the cost of a component whether it's made in-house or purchased from an external source. This person must be as accurate as possible in his or her estimates, as major decisions about the product
are based on these costs.
在许多公司内部的成本估算是由一个专业人员来完成的。 他专门从事确定零件成本这项工作，无论这个零件是在 公司内部生产的，还是从其它公司购买的。因为对于产 品的决定主要是在这些估算的基础上做出的，所以这个
人必须尽可能精确地进行估算工作。
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《机械工程专业英语教程》
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• well-trained engineers can work well in other related fields； • have good written and oral communication skills； • have time-management skills； • have good “people skills”； • be adept at using computers to solve practical problems.
NOTE: the work of an engineer differs from that of a scientist.
Engineering serves as the bridge between scientific discovery, commercial application, and business marketing.
Basic knowledge: mechanics, kinematics, thermodynamics, materials science, and structural analysis.. Basic tools: computer-aided engineering and product lifecycle management
参赛选手：*****
Part 1: Introduction to Mechanical Engineering
1.1 Introduction 1.1.1 What is engineering?
Engineering is the practical and creative application of science and mathematics to solve problems. — Problem-solving One who practices engineering is called an engineer. An engineer is: an innovator, planner, and problem-solver of our society.
Machines Complicated machines Simple machines
Simple machines：
Nail clippers
Simple kitchen machines —a bottle opener
Complicated machines：
cars
excavators
1.1.2 Main branches of engineering
Chemical engineering Civil engineering Electrical engineering Material engineering Mechanical engineering
Figure 1.1 percentages of engineers working in various engineering fields
What is a machine?
• A combination of many interconnected parts • Perform desired work accompanied by desired motions
1.5 How to define and describe a machine? 1.5.1 Engineering Drawings Question: How a machine is described in engineering?
Mechanical engineering is a discipline of engineering that applies the principles of physics and materials science for analysis, design, manufacturing, and maintenance of mechanical systems. Mechanical engineering is all about making useful machines.
1.3 Common Traits of Good Engineers
• problem solvers； • firm grasp of the fundamental principal of engineering； • analytical, detailed oriented, and creative people； • lifelong learners；
• actively participate in professional meetings； • Good cross-culture on skills ；
1.4 What is a machine?
What is a machine?
Mechanical engineering is the second-largest field among the traditional engineering disciplines and is perhaps the most general.
1.2 Mechanical Engineering
According to Franz Reuleaux's description “A machine is a combination of resistant bodies, so interconnected that by applying force or motion to one or more of those bodies, some of those bodies are caused to perform desired work accompanied by desired motions.”