我厂生产的黄河后桥圆柱主动齿轮轴锻件如图1所示,材质为40Cr,下料重量为20.96公斤。原锻件由上海齿轮厂锻造,由我厂负责供运材料。为降低产品的成本,节约费用,我们利用本厂的锻压设备进行了试生产,经过多次工艺试验和多次修改模具,终于在750公斤空气锤和300吨摩擦压力机上用固定模锻锻造成功,班产达80多件,现 I plant the production of the Yellow River rear axle cylindrical pinion shaft forgings shown in Figure 1, the material is 40Cr, cutting the weight of 20.96 kg. Forgings by Shanghai Gear Factory forging, I plant responsible for the supply of materials. To reduce the cost of products and save costs, we use the factory forging equipment for trial production, after several process tests and modify the mold several times, and finally in 750 kg air hammer and 300 tons friction press with a fixed forging forging success Class production of more than 80 pieces, now