postforming sheet

With the overlap_forming of the perimeter of the rear shell body part of the light truck as an example,the stress and strain statuses in forming the revolving sheet parts by overlapping method with different machining processes are analyzed.

以轻型车后壳体零件周边形状的叠料成形为例,分析了回转体薄板叠料成形在采用不同的加工工艺时板料成形的应力应变状态,并根据实际加工后的不同结果,最终确定了合理的加工工艺。

The paper introduces a forming process and design of progressive die for moveable spring used on a relay,and it carries on a process of double layer forming and a way to protect useless stuff from jumping onto bottom plate.

介绍了某继电器中的动簧片成形工艺确定和级进模设计、在级进模中叠片成形及防止小废料上带的一种方