介绍了汽车车身覆盖件的拉延工艺特点和内容，以及在三维CAD环境下汽车覆盖件的拉延工艺设计制造流程。

In this paper, the characteristics and content of drawing technology and its process flow under three-dimension CAD conditions are presented.

youdao

为了快速、准确地制造汽车车身覆盖件，对大型汽车覆盖件材料的屈服极限、强化模式以及失效模式进行了分析。

To make automobile panel rapidly and accurately, the yield limit, hardening modes and invalidation modes of materials for large automobile panels were analyzed.

youdao

介绍了我国汽车车身覆盖件冲压生产工艺的现状和发展趋势，总结了各类冲压生产线的特点和选择生产线的方法；

The actuality and development of automotive cover panel punching process are introduced and the characters and selection method of punching production lines was summarized.

youdao