复杂杆件一般具有形状复杂、空间尺寸较大、回弹变形严重等特点。在自由锻锤上难以成型,尤其是空间角度难以控制,也难以检查。我厂生产的机车上挂车用的提杆(图1)就属这类锻件,此件加工方法如下:1.由于该类件一般是黑皮锻件,共锻件工艺图与零件图相同。2.根据该杆件的形状及特点,考虑回弹及操作方便等因素,以 Complicated rod generally has the characteristics of complex shape, larger space size and serious rebound deformation. Difficult to shape in the free forging hammer, especially difficult to control the space point of view, it is difficult to check. I plant trailer locomotive with a lever (Figure 1) is the case of such forgings, this piece of processing methods are as follows: 1. As the parts are generally black forgings, a total of forgings process drawings and parts the same. 2. According to the shape and characteristics of the rod, taking into account the resilience and ease of operation and other factors