随着汽车行业的发展，对汽车产品的研发周期要求越来越短，同时对产品质量和外观设计水平的要求也越来越高，如何快速设计新型汽车车身产品成为汽车行业发展的关键问题之一。应用Pro／ENGINEER软件，设计出新型汽车车身整体的CAD模型，评价分析了成型型面质量并修改了问题型面；通过选择设定合理的工艺参数，使用熔融挤压快速成型机实现了汽车车身模型的快速原型制造。方便、快速地实现了新型汽车车身产品的设计开发，缩短了研发周期。%With the development of automobile industry, the research and development cycle of automobile body products is getting shorter and shorter than before. At the same time, the requirements for product quality and ap⁃pearance design level are also getting higher. How to design a new model of the automobile body becomes one of the key issues in the auto industry development. A new type of automobile body CAD model was designed by using Pro ENGINEER software. Then the quality of molding surfaces was evaluated and analyzed and the molding surface that has problem was revised. The rapid prototyping of the automobile body model was manufactured by choosing and setting reasonable process parameters, and using the melted extrusion modeling ( MEM) prototyping machine, the design and development of a new type of automobile body product are realized conveniently and quickly, which shortens the research and development cycle.
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