目录第一章绪论............................................................................................................................11.1概述............................................................................................................................11.2冲压技术的进步........................................................................................................11.3模具的发展与现状....................................................................................................11.4模具CAD/CAE/CAM技术......................................................................................21.5课题的主要特点及意义............................................................................................3第二章冲裁变形过程分析....................................................................................................42.1冲裁变形时板材变形区受力情况分析....................................................................42.2冲裁变形过程............................................................................................................42.2.1弹性变形阶段..................................................................................................42.2.2塑性变形阶段..................................................................................................52.2.3断裂分离阶段..................................................................................................52.3冲裁件质量及其影响因素........................................................................................52.3.1冲裁变形特点..................................................................................................52.3.2影响断面质量的因素......................................................................................6第三章冲压工艺方案的制定................................................................................................83.1零件工艺分析............................................................................................................83.2模具分类及特点.............................................................