13335第四拨叉(见图1)空间形状复杂,要求比较高。我厂生产此件工艺为:3吨模锻锤上模锻、315吨切边压力机上热切边、弯曲。关键是在弯曲这一工序上,因热锻件既不好定位,又容易拉伤,锻件若变形就增加了后道工序的工作量,虽经敲敲打打,仍不能保证质量。现经反复试验和摸索,制成一种新的弯曲模(见图2),它和切边模是顺序模,同装在315吨切边压力机上。切过边的锻件放到弯曲 13335 fourth fork (see Figure 1) complex space shape, relatively high requirements. I plant this piece of production process: 3 tons forging hammer on forging, 315 tons of trimming presses on the eager edge, bending. The key is bending this process, because the hot forging is neither good positioning, but also easy to strain, forging if the deformation increases the workload after the procedure, although by knocking, still can not guarantee the quality. Now after repeated testing and exploration, made of a new bending die (see Figure 2), it and the trimming die is a sequential mode, with 315 tons of trimming press. Cut the edge of the forging into bending