塑性成形與模具專業英語（簡體書）

《塑性成形與模具專業英語》共13章，內容主要包括常用工程材料及熱處理基礎，金屬塑性成形基礎，鍛造、軋制工藝及模具，擠壓、拉拔工藝及模具，板料成形工藝及模具，常用模具材料及熱處理，塑料成形工藝及模具，金屬鑄造工藝與模具，模具材料與壽命，金屬和塑料成形設備，模具制造方法及模具cAD／CAM／cAE等。《塑性成形與模具專業英語》較全面地介紹了傳統的塑性成形工藝與模具方面的知識，又兼顧了先進的塑性成形工藝與模具的制造工藝及方法。每節後都附有專業詞匯、詞組及注釋。《塑性成形與模具專業英語》圖文并茂，基本工藝、原理和結構、設備等大多附有圖示說明，以利于學生閱讀和理解課文，記憶和掌握專業詞匯和術語。此外，《塑性成形與模具專業英語》還附有科技英語的特點及翻譯方法與技巧、科技論文摘要寫作介紹等方面的有關內容，可幫助學生提高閱讀和翻譯能力。《塑性成形與模具專業英語》可作為高等院校材料成形及控制工程專業的本科生教材，也可作為相關專業的研究生教材，或供從事塑性成形及模具加工生產與研究開發工作的工程技術人員參考。

《塑性成形與模具專業英語》為普通高等教育“十二五”規劃教材之一。

前言CHAPTER 1 FUNDAMENTALS OF MATERIALS1.1 Metals and Nonmetals1.2 Ferrous Metals.NonferrOUS Metals and Alloys1.3 Polymers1.4 Mechanical Properties of MaterialsCHAPTER 2 HEAT TREATMENT OF METALS2.1 Principle of Heat Treatment of Metals2.2 Heat Treatment Processes2.3 Heat Treatment of Die Materials2.4 Surface Treatment of Die Materials2.5 Heat-Treating Furnaces and EquipmentCHAPTER 3 FUNDAMENTALS OF METAL PLASTIC FORMING3.1 Introduction of Metal Forming Processes3.2 Cold，Warm and Hot Working3.3 Elastic Deformation and Plastic Deformation3.4 Stress.Strain Curve3.5 Tresca and Von Mises Yield CriteriaCHAPTER 4 FORGING AND ROLLING PROCESSES AND DIES4.1 Introduction of Forging Processes4.2 Economics of Forging4.3 Open-Die Forging Operations4.4 Impression-Die and Closed-Die Forging Operations4.5 Other Forging Operations4.6 Rolling Processes4.7 Forging Defects4.8 Forging Die DesignCHAPTER 5 EXTRUSION AND DRAWING PROCESSES AND DIES5 1 IntrodUCtinn of Extrusion Processes5.2 Hot Extrusion5.3 Cold Extrusion5.4 Extrusion Defects5.5 Drawing Process and Die DesignCHAPTER 6 SHEET-METAL FORMING PROCESSES AND DIES6.1 Introduction of Sheet.Metal Forming6.2 Characteristics and Formability of Sheet Metals6.3 Shearing Process6.4 Blanking and Punching6.5 Bending6.6 Deep Drawing6.7 Other Sheet.metal Forming Processes6.8 Specialized Sheet-metal Forming ProcessesCHAPTER 7 PLASTICS FORMING PROCESSES AND MOLDS7.1 Injection Molding7.2 Extrusion and Sheet Forming of Plastics7.3 Compression Molding7.4 Plastic Component and Mould DesignCHAPTER 8 METAL-CASTING PROCESSES AND MOLDS8.1 Introduction of Casting Processes8.2 Sand Casting8.3 Evaporative Pattern Casting8.4 Investment Casting8.5 Semi.Solid Metal Casting8.6 Other Casting MethodsCHAPTER 9 MATERIAIJS AND FAILURE OF DIES9.1 Selection of Die Materials9.2 Principal Forms of Die Failure9.3 General Conceptions and Criteria of Die Failure9.4 Factors Influencing the Life and Failure of Dies9.5 Procedures of Failure AnalysisCHAPTER 10 METALS AND PLASTICS FORMING MACHINES10.1 Crank Presses10.2 Screw Presses10.3 Hydraulic Presses10.4 Hammers10.5 Injection Molding MachineCHAPTER 11 DIE MANUFACTURING METHODS11.1 Fabrication Procedures of Impression Dies11.2 Conventional Machining of Die Components11.3 Copy Milling and NC（Numerical Contr01）Machining of Die Cavities11.4 Electrical-Discharge Machining（EDM）11.5 Electrochemical Machining（ECM）11.6 Rapid Prototyping Manufacturing（RPM）11.7 Rapid Tooling（RT）TechnologyCHAPTER 12 CAD／CAM／CAE OF DIES12.1 CAD12.2 CAM12.3 CAE12.4 Introduction of CAD／CAM／CAE SoftwareCHAPTER 13 CHARACTERISTICS.WRITING AND TRANSLATION TECHNIQUES OF SCIENTIFIC ENGLISH13.1 專業英語的語法特點13.2 專業英語的翻譯13.3 論文標題的漢譯英13.4 論文摘要的撰寫與翻譯參考文獻

The operation characteristics of a press are essentially determined by type and design of its hydraulic drive system. Two types of hydraulic drive systems provide presses of different time-dependent characteristics:1） Direct-driven presses usually have hydraulic oil as a working medium. In vertical presses ofearly design, at the start of downstroke, the upper ram falls under gravity and oil is drawn from the reservoir into the ram cylinder through the suction of this fall. When the ram contacts the workpiece,the valve between the ram cylinder and the reservoir is closed and the pump builds up pressure in the ram cylinder. This mold of operation results in relatively long dwell times prior to start of deformation. In modem direct driven presses, during downstroke a residual pressure is maintained inthe return cylinders or in the return line by means of a pressure relief valve. Thus the upper ram is forced down against pressure and the dwell inherent in the free fall is eliminated, when the press stroke is completed, i. e. , when the upper ram reaches a predetermined position, or when the pressure reaches a certain value, the oil pressure on the ram cylinder is released and diverted to lift the ram.