【摘要】 根据实际生产中压边力的控制状况和理论分析确定了几种压边力变化曲线 ,以非轴对称抛物面车灯反光罩的成形为例 ,采用 Dynaform软件对多种变压边力控制的成形工艺分别进行了数值模拟计算 ,分析了各种变压边力控制对成形的影响 ,并确定了对成形最为有利的压边力的变化趋势更多还原

【Abstract】 This paper takes truck headlamp reflector with non axis-symmetric shape as an example, the simulation calculation of its forming process is carried out by using program DYNAFORM. Several curves of variable blank holding force during deep drawing process are put forward according to the actual conditions in production and the theoretical analysis. The influence of variable blank holding force on forming is studied, the optimal control curve of variable blank holding force is determined.更多还原