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
) U) x+ W% }! p- q5 _6 I3 B两最远临界接触点的夹角大小比拟

青华模具培训

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
" w- a! @* r; F# y结果与讨论

青华模具培训

Results and discussions (continued)
6 E- h  h* M% E) u; O
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)

+ Z1 f+ j: {6 u4 C5 CComparison Between Designed and Compensated Tool Surface, which
means z-coordinate difference between the two surface shapes on the section A-B
( `5 {- P1 K2 Qbefore and after compensated

青华模具培训

结论
* n. J+ T) m% E( n( v2 V; T9 @! d„ A combination scheme of the Dynamic Explicit Spring-
# O# O5 z) e6 m. h& J! ?3 ~back Algorithm (DESA) and the Tool Surface
8 K5 N  y/ C0 cCompensation Method (TSCM) are proposed. The
7 o" G7 e; |( I$ s% X/ Xformula of the critical  damping coefficient for  DESA is
- ]8 B5 x* H; B' }. yprovided. The springback results of the  truck  carling
# ?9 n% p% p+ m( v$ y4 J; @0 Bshows that the present method is valid, the effect of the
springback compensation is verified by the tool surface
, F! s+ J  T" d7 z) r. Fcompensation scheme.

mazhaofaoo

感谢分享！！