我厂汽车前桥轴套管是薄壁管零件(如图1),变形长度长达160毫米。壁厚只有12毫米(如图3b),致使生产时镦锻不稳定,极易产生折纹。由于空心毛坯在模具型槽中夹得太紧会变形,稍微一松又不稳定,常常产生皱折,同时管子冷却很块,要在一次加热里镦锻成形,给工艺带来一定的困难,后经“三结合”小组反复调试攻关,终于试锻出合格锻件。 My factory car axle shaft sleeve is thin-walled tube parts (Figure 1), the deformation length of up to 160 mm. Wall thickness of only 12 mm (Figure 3b), resulting in upsetting production instability, prone to crease. As the hollow blank in the mold-type slot in the folder too tight will be deformed, a little loose and unstable, often produce wrinkles, while the tube is very cool block, upsetting in a heating upsetting, the process to bring some difficulties, After the “triple combination” group repeatedly debugging research, finally forging out forgings.