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前轴是载重汽车的重要零件(见图1),承受复杂负荷,它具有弯曲轴线和工字形变断面.前轴的工艺特点是: 1、沿长度方向断面变化大,必须有制坯工序。我们用辊锻制坯。据根前轴最大断面(包括飞边断面)选定原材料断面,最大断面在两端头部,根据计算选用原材料断面为方85毫米。 2、工字形腹板薄,只有12毫米,筋窄而深,在弹簧座处更明显。总长约1660毫米。由于锻造温度的波动对总长度变化影响较大。锻造过程中温度变化大,降温快,对模锻成形及金属充满型槽带来困难并增大模锻设备的吨位。毛坯重65公斤,用手工操作不方便,须要有
Front axle is an important part of the truck (see Figure 1), to withstand complex loads, it has a bending axis and the I-shaped cross-section change.Front shaft of the process features are: 1, along the length of the cross-section changes, there must be blank process. We use roll forging billet. According to the largest section of the root axis (including the flash section) selected raw material cross-section, the largest cross-section at both ends of the head, according to the calculation of raw material cross-section of 85 mm. 2, I-shaped web thin, only 12 mm, tendons narrow and deep, more pronounced in the spring seat. Total length of about 1660 mm. As the forging temperature fluctuations on the total length of the greater impact. Large changes in temperature during forging, rapid cooling, forging and metal-filled groove forming difficult and increase the amount of forging equipment tonnage. Blank weight 65 kg, hand operation is not convenient, you need to have