(十一) F 型分叉锻件——这类锻件的形状和工艺。如图23所示,它的操作方法与以前也大致相似,其要领是要注意各叉枝体积的分配和需要转向的叉枝方向,并予先留出平角的圆弧,以便扭转后,不致产生材料不够或太多而造成拆缝等缺陷。(十二) W 型分叉锻件——这类锻件的形状和工艺过程如图24、25所示它可以用二次分叉的锻造方法,基本锻出 (11) Type F forgings - the shape and process of such forgings. As shown in Fig. 23, its operating method is similar to that of the previous one. The main point is to pay attention to the distribution of the volume of the branches and the direction of the branches that need to be turned. Produce insufficient or too much material caused by the demolition of defects. (XII) W Forked Forgings - The shape and process of such forgings are shown in Figure 24,25. It can be used for forging with double bifurcation, basic forging