The forming process of 6400 steering knuckle arms was analyzed by plastic FEM software Deform. The reasons causing the problems of fold and underfill in the production were found.

• 使用塑性有限元分析软件deform对 640 0转向节臂成形过程进行了模拟分析 ,找出了其在生产过程中出现的折叠、缺肉等问题的原因。