通过对投递箱箱盖的成形工艺分析 ，介绍了其弯形压边模结构及工作过程 ，阐述了在有花纹及字母的成形模设计中应注意的事项。
Through the analysis of the technological process for the delivery box lid, the structure working process of the flanging and pattern_pressing die were introduced.
对于凸缘部位的浅拉深，采用压边圈兼作浅拉深凸模的作用，取得较好的效果。
To low drawing in flange part, the blank holder can be used as punch, and the effect is good.
分析了不同压边力和凸凹模间隙对精冲断面质量和模具应力的影响关系。
Variation of striper force and clearance between punch and die plate with respect to shear plane and die stress were analyzed.
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