我厂生产的HZ35型钱塘江载重汽车的转向节毛坯(见图1),重12公斤。按常规,模锻这样的转向节要用3吨模锻锤和相应的配套设备,我厂没有上述配套设备,只有二台750公斤空气锤和一台300吨摩擦压力机。过去,转向节从制坯到成形都是人工抬模锻造,劳动强度大,不安全,同时因锻件长时间停留在胎模内,因而降低了模具寿命。现在从制坯到成形用模锻取代了胎模锻,经试生产证明这种模锻工艺是可行的。 I plant the production of HZ35 Qiantang truck steering knuckle rough (see Figure 1), weighing 12 kg. Conventionally, die-forging steering knuckles use 3-ton die forging hammer and corresponding ancillary equipment. Our factory does not have the above-mentioned ancillary equipment, only two 750-kg air hammers and a 300-ton friction press. In the past, steering knuckle from the blank to the forming are manual lift forging, labor-intensive, unsafe, and forgings remain in the mold for a long time, thus reducing the mold life. Now from the blank to the forming die forging replaced the die forging, the trial production proved that the die forging process is feasible.