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图1所示楔形零件为铜材制品,过去此件是在不同厚度的铜板上单个冲制,效率低、毛刺大,尤其是原材料浪费严重,材料利用率仅
The wedge-shaped parts shown in Figure 1 are made of copper products. In the past, this piece was punched individually on copper plates with different thicknesses. The efficiency was low and the burrs were large. In particular, the waste of raw materials was serious, and the material utilization rate was only