板金属回弹仿真与模面补偿方法

青华模具培训

高强钢板沿与轧制方向上成90度方向下料时，冲头圆心与板材
两最远临界接触点的夹角大小比拟

青华模具培训

& }+ C" P  M# M3 f结果与讨论
1.  一汽集团大卡车纵梁

青华模具培训

2.  卫星天线模具外表回弹补偿
结果与讨论

青华模具培训

Results and discussions (continued)
% ?) r# a0 M3 O4 D+ ?7 {
工具补偿算法得到的回弹后的⊿z 坐标 （最大误差1.13mm）

青华模具培训

Results and discussions (continued)
& Y1 N' H5 M% W- W
Comparison Between Designed and Compensated Tool Surface, which
% T: G" N) C1 T1 Z, ~means z-coordinate difference between the two surface shapes on the section A-B
before and after compensated

青华模具培训

结论
. g+ _: ^$ A( U! i/ a„ A combination scheme of the Dynamic Explicit Spring-
back Algorithm (DESA) and the Tool Surface
( J* Z1 X/ |1 V: _Compensation Method (TSCM) are proposed. The
) c/ c4 A: P+ n6 o( c8 hformula of the critical  damping coefficient for  DESA is
provided. The springback results of the  truck  carling
shows that the present method is valid, the effect of the
springback compensation is verified by the tool surface
compensation scheme.

mazhaofaoo

感谢分享！！