2023年全國碩士研究生考試考研英語一試題真題(含答案詳解+作文范文)_第1頁
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1、附錄(一) 外文原文Heat Treatment of Die and Mould Oriented Concurrent DesignLI Xiong,ZHANG Hong-bing,RUAN Xue—yu,LUO Zhong—hua,ZHANG YanAbstract: Many disadvantages exist in the traditional die design method which belongs to s

2、erial pattern. It is well known that heat treatment is highly important to the dies. A new idea of concurrent design for heat treatment process of die and mould was developed in order to overcome the existent shortcoming

3、s of heat treatment process. Heat treatment CAD/CAE was integrated with concurrent circumstance and the relevant model was built. These investigations can remarkably improve efficiency, reduce cost and ensure quality of

4、R and D for products.Key words: die design, heat treatment;,mouldTraditional die and mould design,mainly by experience or semi—experience,is isolated from manufacturing process.Before the design is finalized,the scheme o

5、f die and mould is usually modified time and again,thus some disadvantages come into being,such as long development period,high cost and uncertain practical effect.Due to strong desires for precision,service life,develop

6、ment period and cost,modern die and mould should be designed and manufactured perfectly.Therefore more and more advanced technologies and innovations have been applied,for example,concurrent engineering,agile manufactu

7、ring virtual manufacturing,collaborative design,etc.Heat treatment of die and mould is as important as design,manufacture and assembly because it has a vital effect on manufacture,assembly and service life.Design and ma

8、nufacture of die and mould have progressed rapidly,but heat die and mould and the market foreground.Whereas in the concurrent pattern,the relations among departments are close,the related departments all take part in the

9、 development progress of die and mould and have close intercommunion with purchasers.This is propitious to elimination of the conflicts between departments,increase the efficiency and reduce the cost.Heat treatment proce

10、ss in the concurrent circumstance is made out not after blueprint and workpiece taken but during die and mould designing.In this way,it is favorable to optimizing the heat treatment process and making full use of the pot

11、ential of the materials.2 Integration of Heat Treatment CAD/CAE for Die and MouldIt can be seen from Fig.2 that the process design and simulation of heat treatment are the core of integration frame.After information in

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