摩托车挡泥板成形模拟及工艺参数优化

Forming simulation and optimizing process parameter of motorcycle fender

针对摩托车后挡泥板成形过程中容易起皱和拉裂的问题,采用塑性有限元法,利用Dynaform模拟分析软件,对摩托车的后挡泥板成形过程及影响其成形质量的两个主要工艺参数——压边面的形状和尺寸、拉深筋的高度进行了模拟和优化,得到了压边面形状和尺寸、拉深筋高度分布的优化工艺参数。有效地避免了摩托车后挡泥板在成形过程中的起皱和拉裂,获得了合格的零件。

Aiming at the problem that motorcycle back fender tends to be crinkled and cracked during the forming process, the plastic finite element method and Dynaforrn software were employed to simulate the forming process and optimize its two primary process parameters of figure and size of press border surface and heights of drawbead. The optimized shape and size of press border surface and drawbead height distributon were got. The motorcycle behind fender＇s crinkles and cracks were effectively avoided to have the qualified parts.