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如图1所示的带有锥度的内孔整形芯棒(材料GCr15,HRC60～63),其起导向作用的锥度部分,可采用化学腐蚀方法进行加工。其加工设备简单,投资少,成本低。该加工方法也适用于异型件冲压模和其他模具的锥度加工。加工方法如图2所示。将被加工零件的非加工部分涂上保护漆,加工部分垂直向下放在弹簧上,弹簧放在腐蚀液中,弹簧在工件重力作用下被压缩,这时弹簧的上端面应与液面平齐(弹簧的参数要根据工件
As shown in Figure 1 with a tapered bore hole core material (material GCr15, HRC60 ~ 63), which plays a leading role in the taper, the use of chemical etching method for processing. Its processing equipment is simple, less investment, low cost. The processing method is also suitable for profiled stamping dies and other mold taper processing. Processing method shown in Figure 2. Will be processed parts of non-processed parts coated with protective paint, the processing part of the vertical down on the spring, the spring on the corrosive liquid, the spring under the gravity of the workpiece is compressed, then the upper spring surface level with the liquid level (The spring parameters are based on the workpiece