Based on the analysis and evaluation of wrinkle shape, a parameter to study.the side-wall wrinkling problems in deep drawing of axisymmetrical curved parts is determind. 在分析与评价几种表述皱纹形状参数的基础上，确定了适用于研究轴对称曲面类零件侧壁起皱问题的皱形参数。
Since the sheet metal in the wall area is relatively unsupported by the tool, the elimination of wall wrinkles is more difficult than the suppression of flange wrinkles. 由于金属板料在拉伸壁区域内相对无支撑，因此消除拉伸壁起皱比抑制法兰边起皱要难得多。
