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勾舌销是铁路部门常用的一种车辆配件,是属于大头带杆零件,其零件图如图1所示。其旧工艺过程是:剪床下料→加热→160吨摩擦压力机镦销头→切削加工。消耗大
Hook tongue is a commonly used railway sector a vehicle accessories, is a big head with bar parts, the parts shown in Figure 1. The old process is: Shear cutting → heating → 160 tons of friction press heading sales → cutting. Expensive