一个集成的CADCACAM系统在汽车冲压模具中的应用-毕业设计外文翻译.docVIP

毕业设计（论文）外文翻译 课题名称 ：一个集成的CAD / CAE / CAM系统在汽车冲压模具中的应用 机械专业外文翻译 Application of an integrated CAD/CAE/CAM system for stamping dies for automobiles Bor-Tsuen Lin Chun-Chih Kuo Abstract The globalization and competition in the automobile industry makes it necessary to reduce the time spent on product development. Therefore, computer aided product development has become one of the most important techniques in the automobile industry. According to the concurrent engineering concept, an integrated CAD/CAE/ CAM system for automobile stamping die development is established. The system is based on 3D surface construction CAD software STRIM, CAD/CAE software CATIA, stamping formability analysis software DYNAFORM, CAM software CADCEUS, a stamping design knowledge- based system, and a product database. This paper uses the development of trunk lid outer panels as an example to showcase the power of the system, in which the different development stages can be performed simultaneously. The system can greatly reduce the development time and cost, improve the product quality, and push products into the market in a relatively short time. 1 Introduction Since stamping parts have considerable potential because of their competitive productivity and performance, they have been widely used in the automotive industry. However, the manufacturing industry has three major goals: to improve product quality, to reduce development cost, and to reduce the time spent on development. In order to achieve these goals, we need to bring in new technologies. From the manufacturing viewpoint, the major requirement for most applications of sheet metal is good formability [1]. Given that part surfaces have become more and more complex and sharp-edged, we need to take advantage of formability analysis to understand their stamping properties. In 1963, Keeler and Backofen [2] introduced the concept of forming limit diagrams (FLDs). They analyzed the shape and size f