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
$ n( q) \2 |7 B& O7 x2 K两最远临界接触点的夹角大小比拟

青华模具培训

& ?: N& Z; b! Z0 n: E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
# ?! ?- O+ F; H) ]( @结果与讨论

青华模具培训

Results and discussions (continued)

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)
: H$ `; V: [6 n' }
Comparison Between Designed and Compensated Tool Surface, which
0 k: a; V. O0 Z) a5 gmeans 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
$ [) u: n' ~0 i1 D6 T3 P7 s0 u' _% D„ A combination scheme of the Dynamic Explicit Spring-
5 _) [  X! d% n, ]back Algorithm (DESA) and the Tool Surface
; _8 z4 D  {- A1 P7 n# ^Compensation Method (TSCM) are proposed. The
4 \0 T: v* U  i2 T/ s/ jformula 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
! j' A$ V' w- z  e! V0 Y! @springback compensation is verified by the tool surface
compensation scheme.

mazhaofaoo

感谢分享！！