模具专业英语教案.docx

1、模具专业英语教案模具设计与制造专业英语教案Lesson 1 Tool Materials目 的 要 求：1. 掌握课文中工具钢的专业词汇和专业术语 2. 结合工具钢的相关专业知识阅读课文，提高翻译能力教 学 重 点：1. 工具钢的专业词汇和专业术语 2. 翻译课文：工具材料种类词汇； 金属材料的物理、力学性能词汇。教学内容：1Background Knowledge工具钢是用以制造切削刀具、量具、模具和耐磨工具的钢。工具钢具有较高的硬度和在高温下能保持高硬度得红硬性，以及高的耐磨性和适当的韧性。工具钢一般分为碳素工具钢、合金工具钢和高速工具钢。 Tool steels ：carbon tool

2、 steels，alloy tool steels， high speed tool steels2New Words and ExpressionsMetal金属： iron 铁 steel 钢aluminum 铝magnesium 镁 zinc 锌bismuth 铋copper 铜lead 铅；3. Text Analysis4Questions5Glossary of Terms6Language Points & Translating Techniques7学生答疑8SummaryLesson 2 Heat Treatment of Tool Steels目 的 要 求：1. 掌握课

3、文中有关热处理的专业词汇和专业术语。2. 结合热处理的相关专业知识阅读课文，提高翻译能力。教 学 重 点：1. 有关热处理的专业词汇和专业术语。2. 翻译课文：热处理的原理；热处理的类型；热处理的步骤。教学内容：1Background KnowledgeThe Principles of Heat Treatment2New Words and ExpressionsHeat treating热处理：normalize正火spheroidiz 球化处理anneal退火harden 淬火temper 回火case harden 表面淬火stress relieving应力消除热处理carburi

4、ze 渗碳quench-hardening 淬火硬化3. Text Analysis4Questions5Glossary of Terms6Language Points & Translating Techniques7学生答疑8SummaryLesson 3 Cutting Tool Design目 的 要 求：1. 掌握课文中有关刀具的专业词汇和专业术语；2. 结合刀具的相关专业知识阅读课文，提高翻译能力。教 学 重 点：1. 刀具的专业词汇和专业术语； 2. 翻译课文：机械加工中五个相互影响的要素； 设计人员需掌握的专业知识； 刀具的几何形状。教学内容：1Background Kno

5、wledgeMachining：Tool Geometry:2New Words and ExpressionsNomenclature 名称，术语，专门用语alpha 希腊字母“A,a”，最初，开始numeric 数值的；数，分数significant重要的，有效的nose机头，突出部分identification辨别，鉴别trial and error 反复试验theoretical framework 理论框架on the basis of 在基础上，根据，主要成分 to a great extent 很大程度上(be) governed by 取决于，以为转移parent metal

6、母体金属3. Text Analysis4Questions5Glossary of Terms6Language Points & Translating Techniques7学生答疑8SummaryLesson 4 Workholding Principles目 的 要 求：1. 掌握课文中加紧装置及工作原理的专业词汇和专业术语；2. 结合加紧装置及工作原理的相关专业知识阅读课文，提高翻译能力教 学 重 点：1. 加紧装置及工作原理的专业词汇和专业术语； 2. 翻译课文：加紧装置的原理；手钳、虎钳、抓盘的结构及工作原理。教学内容：1Background KnowledgeThe term

7、 workholder includes all devices that hold, grip, or chuck a workpiece to perform a manufacturing operation. The holding force may be applied mechanically, electrically, hydraulically, or pneumatically. This section considers workholders used in material-removing operations. Workholding is one of th

8、e most important elements of machining processes.2New Words and Expressionsworkholder工件夹紧装置holding force 夹紧力workpiece工件 toolholder刀具夹紧装置chip切屑cutting tool(knife)切削刀具cutting force切削力tightening force紧缩力torque扭矩3. Text Analysis4Questions5Glossary of Terms6Language Points & Translating Techniques7学生答疑8S

9、ummaryLesson 5 Jig and Fixture Design目 的 要 求：1掌握课文中钻具、夹具的专业词汇和专业术语；2结合钻具、夹具的相关专业知识阅读课文，提高翻译能力。教 学 重 点：1钻具、夹具的专业词汇和专业术语；2翻译课文重点：钻具、夹具的概念及类型； 钻具、夹具设计时需考虑的因素。教学内容：1Background KnowledgeJig and Fixture DesignJigs are workholders which are designed to hold, locate,and support a workpiece while guiding the

10、 cutting tool throughout its cutting cycle. Fixtures are workholders which are designed to hold, locate, and support the workpiece during the machining cycle. 2New Words and Expressionsmachining切削加工drill 钻孔bore 镗孔tap攻螺纹chamfer倒角countersink钻埋头孔/钻锥形孔counterbore扩孔3. Text Analysis4Questions5Glossary of

11、Terms6Language Points & Translating Techniques7学生答疑8SummaryLesson 6 Press Type目 的 要 求：1掌握课文中压力机的专业词汇和专业术语；2结合压力机的相关专业知识阅读课文，提高翻译能力。教 学 重 点：1压力机的专业词汇和专业术语；2翻译压力机的类型及各类型的结构特点；典型压力机的结构组成。教学内容：1Background KnowledgeCharacteristic of the press working process is the application of large forces by press to

12、ols for a short time interval, which results in the cutting (shearing) or deformation of the work material. A pressworking operation ,generally completed by a single application of pressure, often results in the production of a finished part in less than one second.Pressworking forces are set up , g

13、uided, and controlled in a machine referred to as a press. 2New Words and Expressionspress压力机bed 工作台bolster plate 垫板/工作台ram冲头/滑块slide滑块knockout顶出装置cushion缓冲垫3. Text Analysis4Questions5Glossary of Terms6Language Points & Translating Techniques7学生答疑8SummaryLesson 7 The Injection-molding Machine目 的 要 求

14、：1掌握课文中注射机的专业词汇和专业术语；2结合注射机的相关专业知识阅读课文，提高翻译能力。教 学 重 点：1注射机的专业词汇和专业术语；2翻译注射机的类型；各类型的结构及工作原理；注射成型的优点。教学内容：1Background KnowledgeThe greatest quantities of plastic parts are made by injection molding. The process consists of feeding a plastic compound in powdered or granular form from a hopper through m

15、etering and melting stages and then injecting it into a mold. After a brief cooling period, the mold is opened and the solidified part ejected. In most cases, it is ready for immediate use.2New Words and Expressionsthe injection-molding machine 注射机oil reservoir油箱clamp equipment合模装置injection equipmen

16、t注射装置electrical control panel电气控制板safety gate安全门hopper料斗control console操纵台/控制台3. Text Analysis4Questions5Glossary of Terms6Language Points & Translating Techniques7学生答疑8SummaryLesson 8 Blanking Technique目 的 要 求：1掌握课文中冲裁工艺的专业词汇和专业术语；2结合冲裁工艺的相关专业知识阅读课文，提高翻译能力。教 学 重 点：1冲裁工艺的专业词汇和专业术语。2翻译冲裁过程；冲裁间隙及对断面质量

17、的影响；压力中心、冲裁力、卸料力。教学内容：1Background KnowledgeMain Concepts：1.Cutting operations ：The cutting of metal between die components is a shearing process in which the metal is stressed in shear between two cutting edges to the point of fracture, or beyond its ultimate strength. 2.Center of pressure ：It is th

18、erefore necessary to find a point about which the summation of shearing forces will be symmetrical. This point is called the center of pressure, and is the center of gravity of the line that is the perimeter of the blank. 2New Words and Expressionscommon components of a simple die简单冲裁模的基本结构 punch凸模

19、punch holder凸模固定板guide pins导柱guide pin bushing导套stripper卸料板bolser plate垫板die holder凹模固定板3. Text Analysis4Questions5Glossary of Terms6Language Points & Translating Techniques7学生答疑8SummaryLesson 9 Piercing and Blanking Die Design目 的 要 求：1掌握课文中冲孔、落料工艺的专业词汇和专业术语；2结合冲孔、落料工艺的相关专业知识阅读课文，提高翻译能力。教 学 重 点：1冲孔、

20、落料工艺的专业词汇和专业术语；2翻译课文：冲孔与落料的区别；典型的冲孔模结构及工作原理； 典型落料模的结构及工作原理。教学内容：1Background KnowledgeSingle-station die ：piercing die；blanking die Compound die design: A compound die performs only cutting operations（usually blanking and piercing）which are completed during a single press stroke. A compound die can p

21、roduce pierced blanks to close flatness and dimensional tolerances. 2New Words and Expressionsquill punch凸模护套stripper卸料板stripper bolt卸料螺钉comp spring (component spring)弹性元件nest定位板(孔)backing plate hdn and grd Rc 56-59 = backing plate harden and grind Rc 56-59垫板要求要进行淬火和打磨，使其洛氏硬度达到56-593. Text Analysis4

22、Questions5Glossary of Terms6Language Points & Translating Techniques7学生答疑8SummaryLesson 10 Bending Dies目 的 要 求：1掌握课文中有关弯曲的专业词汇和专业术语；2运用弯曲的相关专业知识阅读课文，提高翻译能力。教 学 重 点：1弯曲的专业词汇和专用术语2.翻译课文：弯曲工艺的概念；弯曲工艺参数，如：弯曲半径、弯曲件的展开长度、弯曲方法、弯曲力和回弹现象。教学内容：1Background KnowledgeBending is the uniform straining of material,

23、 usually flat sheet or strip metal, around a straight axis which lies in the neutral plane and normal to the lengthwise direction of the sheet or strip. Metal flow takes place within the plastic range of the metal, so that the bend retains a permanent set after removal of the applied stress. The inn

24、er surface of a bend is in compression; the outer surface is in tension. A pure bending action does not reproduce the exact shape of the punch and die in the metal; such a reproduction is one of forming. The neutral axis is the plane area in bent metal where all strains are zero. 2New Words and Expr

25、essionsneutral axis中性层the inner surface（弯曲件的）内区the outer surface（弯曲件的）外区compression 压缩tension 受拉bend radius弯曲半径bend angle弯曲中心角inside radius of bend内弯曲半径bend allowance弯曲件的坯料尺寸 3. Text Analysis4Questions5Glossary of Terms6Language Points & Translating Techniques7学生答疑8SummaryLesson 11 Plastics目 的 要 求：1

26、掌握课文中有关塑料的专业词汇和专业术语；2结合塑料的相关专业知识阅读课文，提高翻译能力。教 学 重 点：1塑料的专业词汇和专业术语。2翻译：塑料的分类，即热塑性/热固性塑料； 塑料中填充剂的种类及作用。教学内容：1Background KnowledgeToday, the name plastics is identified with the products which are derived from synthetic resins. The synthetic resins are made by various chemical processes. Plastics manuf

27、acturing is of comparatively recent date. The discovery of ebonite, or hard rubber, by Charles Goodyear in 1839, and the development of celluloid（cellulose nitrate）by Hyatt in 1869 marked the beginning of plastic products. Today plastics are commonly found in homes, automobiles, numerous other produ

28、cts, and machines. Some machines which utilize electricity require plastic parts with electrical insulating properties. 2New Words and Expressionsraw material原材料synthetic resin合成树脂synthetic fiber合成纤维synthetic rubber合成橡胶polyester resin聚酯树脂phenol formaldehyde resin酚醛树脂cellulose nitrate硝酸纤维thermosetting plastic热固性塑料thermoplastic热塑性塑料3. Text Analysis4Questions5Glossary of Terms6Language Points & Translating Techniques7学生答疑8Summary