伞齿轮轴是拖拉机中的一个重要零件(图1),其锻坯采用一般自由锻造工艺锻造,很难达到技术要求,而且加工余量很大,往往跟不上生产需要。新工艺锻造工序如图2所示。锻件采用1.5吨汽锤两火锻成。第一火完成夹印和甩二端轴(见图2左上及左下);第二火成型至锻件图(见图2右)。 Bevel gear shaft is an important part of the tractor (Figure 1), the forging billet forging by the general free forging process, it is difficult to meet the technical requirements, and machining allowance is large, often keep up with the production needs. The new process forging process shown in Figure 2. Forged pieces with 1.5 tons of steam hammer two forging. The first fire to complete the folder and rejection both ends of the shaft (see Figure 2 upper left and lower left); second fire forming forgings (Figure 2 right).