Abstract: 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.

• 文摘: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法。