对连接螺成形工艺进行分析,提出了采用热挤压成形连接螺,给出了坯料尺寸及热挤压力的计算方法,并对热挤压模的设计作了介绍。 In this paper, the forming process of the conical thread was analyzed, and the method of forming the conical thread by hot extrusion was put forward. The calculation method of the size of the stock and the hot extrusion pressure was given. The design of the hot extrusion die was also introduced.