介绍了硬铝空心锥形凸缘螺丝成形工艺及模具设计的方法,分析了硬铝塑性较差给冷挤压、冷镦和外螺纹滚压工艺带来困难的特点,从成形工艺、模具设计及表面处理等方面采取了措施,较好地解决了该零件塑性成形工艺产生的缺陷。也为强度较低的无色金属空心壁上滚压外螺纹提供了较有效的方法。 In this paper, the forming process of hollow aluminum conical flanges and the mold design method were introduced. The poor hard aluminum - plastic characteristics of the cold extrusion, cold heading and external thread rolling were analyzed. The effects of forming process, mold Design and surface treatment and other measures taken to better address the parts of the plastic forming process defects. It also provides a more effective method for rolling a non-ferrous metal hollow wall with a lower strength.