Register punch: Precision punching device used in a punch register system.
定位打孔机：应用于打孔定位系统内的精密打孔机。
Register punch: Precision punching device used in a punch register system.
打孔是用一种专用的打孔定位装置进行的。
The punching process and die structure design of precision punching gear piece were introduced. hoped it to be a reference for die design of similar parts.
介绍了精冲片齿轮的工艺方法及模具结构设计，希望能为类似零件模具设计提供参考。
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