The differences of stress state between extrusion-flanging and traditional flanging, and the influences of curvature radius of burring punch on flangeheight 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。
2
When flange thickness and total height adopt standard values, these two parts of marks may be omitted.
当法兰厚度及法兰总高度均采用标准值时，此两部分标记可省略。
3
Flange cup Washers generally have a greater overall height than Back up Washers and therefore the cup portion is deeper.