To low drawing in flange part, the blank holder can be used as punch, and the effect is good.

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。

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The differences of stress state between extrusion-flanging and traditional flanging, and the influences of curvature radius of burring punch on flange height were analyzed.

分析了挤压翻边与传统翻边应力状态的不同之处，以及翻边凸模的冲头曲率半径对翻边效果的影响。

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