对壳体的冲压工艺进行了分析，介绍了拉伸、切边模具结构设计的要点。

Analyzed the pressing process of the shell part, introduced the structure design points of drawing-trimming die.

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针对板材三维冲压成形的切边回弹问题，提出了基于大变形弹塑性有限元数值模拟理论的切边处理AIA方法。

In this paper, an edge-cutting AIA method is presented based on elastic-plastic large deformation finite element simulation theory.

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