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一、概述 图1所示零件是DZ12-60开关中的主要零件——触头。原冲制该零件所需工序较多,而采用多工位级进模可一次冲制出该
First, an overview The part shown in Figure 1 is the main part of the DZ12-60 switch - the contact. The original process required to punch the part more, and the use of multi-stage progressive die can be punched out of the one