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. 在分析與評價幾種表述皺紋形狀參數的基礎上，確定了適用於研究軸對稱曲面類零件側壁起皺問題的皺形參數。
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. 由於金屬板料在拉伸壁區域內相對無支撐，因此消除拉伸壁起皺比抑製法蘭邊起皺要難得多。
