椭圆盖冲压成形工艺分析及模具设计

Technological analsis of the eUipsepart parts and design of the die

分析了椭圆盖冲压件的结构及工艺性。详细介绍了椭圆拉深件毛坯展开尺寸计算方法及工序计算，并讨论了其成形时的诸多难点，冲压各工序的模具结构及工作过程，提出了模具设计及制造时应注意的事项。

The structure and the technological process of the ellipsepart parts were analyzed .The calculation of the preform configuration and the process were introduced .And the moulding＇s nodus were discussed .The structure and working process of die on each operation were introduced.And the points for attention in the design and manufacture of the dies were listed.