Forging process for coupler knuckle products

The invention discloses a forging process for coupler knuckle products. A cylindrical material is formed after being subjected to the steps of blanking, heating, upsetting, pre-forging, finish forging and trimming in sequence. Wherein in the pre-forging step, a workpiece is prefabricated into a pre-forged blank in a cross shape through pre-forging; in the finish forging step, the pre-forged blank is subjected to finish forging forming according to a finish forging die cavity. According to the forging process of the coupler knuckle type product, a three-step die forging blank manufacturing method is adopted, and an open type partial prefabricated blank is adopted, so that the shape required by finish forging is achieved. And the material utilization rate of the forge piece can be increased to more than 90%, and the material utilization rate of the part can be increased to more than 70%. 本发明公开一种钩舌类产品的锻造工艺，圆柱料依次经过下料、加热、镦粗、预锻、终锻、切边的步骤后成型；其中，预锻步骤中，通过预锻使工件预制出十字交叉形状的预锻坯；终锻步骤中，按终锻模具型腔对预锻坯终锻成形。本发明的钩舌类产品的锻造工艺，采用三工步的模锻制