图1所示零件是印刷机上的油盆,图2是其锻件图。零件材质为黄铜H62。为压制这一零件,我们设计制造了一副结构简单的反挤胎模。在400公斤空气锤上使用,可使φ28×78毫米的铜棒料一次锻成合格锻件。4个工人一班可生产300余件。锻件只需少量切削加工即可成为最终零件。实践证明用胎模反挤工艺生产油盆锻件, The part shown in Figure 1 is the oil pot on the press, and Figure 2 is the forgings. Parts made of brass H62. To suppress this part, we designed and manufactured a simple anti-extrusion die. Used in the air hammer of 400 kilograms, it can make φ28 × 78mm copper rod material forged forgings once. A group of 4 workers can produce more than 300 pieces. Forging only a small amount of machining can be the final part. Practice has proved that the tire extrusion die production process forging,