中文摘要：

汽车离合器毂体是一种形状复杂的零件,具有大的空间表面积,且在中心孔缘部位有明显的厚度增加,成形难度较大。以某轿车离合器毂体零件为研究对象,针对其中心孔缘部的结构特征,设计了冲压翻内孔与镦挤增厚相结合的冲锻成形工艺,并利用MSC.Marc有限元软件对该工艺进行了模拟优化,获得了合理的工艺参数,为实际生产提供了参考。

英文摘要：

The clutch hub is a part with complex shape and large surface area,and there is an obvious increase of thickness in the hole edge of the center,which makes it difficult to form.Stamping-forging hybrid forming process combining flanging and upsetting thickening of the clutch hub to form local thickening of the center hole edge was designed according to the features of the center hole edge.The process parameters were optimized using finite element software MSC.Marc.The results are reasonable,which could provide references to the practical industrial production.