【摘要】 根据多晶金属板材塑性变形的晶体学理论，由材料织构定量分析（ＯＤＦ）方法，计算了金属板材的冲压制耳高度分布。考虑到单晶滑移变形及屈服条件，计算出了板坯的径向应变周边分布，然后用取向分布函数（ＯＤＦ）给予加权平均计算多晶金属板材的径向应变，进而计算板坯周边的平均应变及制耳高度。对铝合金板材理论预测的结果表明制耳位置（４５°制耳），制耳个数（４个制耳）与制耳率（ｅ＝４．２９）与实测的结果相吻合。更多还原

【Abstract】 Earing in the cup drawing of sheet metals was calculated quantitatively by using a crystallographical theory of plastic deformation with measured texture data. The results showed that earing in the drawn cup can be predicted satisfactorily by the present method for a wide range of materials.更多还原