【汽车覆盖件冲压CAPP系统及其关键技术研究】王义林.pdf

【汽车覆盖件冲压CAPP系统及其关键技术研究】王义林.pdf

ADissertationSubmittedto Huazhong University of Science and Technology for the Degree of Doctor of Philosophy in Engineering Research on Panel Stamping CAPP System and Its Key Techniques Ph.D.Candidate:Wang Yilin Major:Metal Forming Supervisor:Prof.Xiao Jingrong Vice Supervisor:Prof.ABSTRACT andfabricationof carbodyandpanel dies arekeyissuesin thedevelopmentofnew automobiles.In order toimprove the quality of car body andpanel dies,to shorten car body design and manufacturingperiods,and to enhance the ability to develop automobile products by ourselves,it thetheoryandmethodolog目录 摘要 ABSTRACT IL 第一章绪论 51课题的意义与来源车身的设计和制造.S1覆盖件模具CAD/CAM的发展历史和现状 1覆盖件模具CAD系统存在的问题和发展方向 1作者的主要研究工作及意义 第二章覆盖件的产品定义模型 S2引言 52特征技术研究现状 S2覆盖件的产品定义.S2特征定义基于特征的覆盖件产品定义模型覆盖件的形状特征分类 S2小结第三章覆盖件的特征表达与建模3引言 S3形状特征间的关系.S3覆盖件的特征表达模式 S3形状特征模型.