Hub forming method

The invention provides a hub forming method. The hub forming method comprises the steps that annular blank is selected as a processing raw material; the annular blank is subjected to forward extrusion forming, and performing of a spoke and a rim of a hub is simultaneously completed at one step; the preformed annular blank is subjected to flaring of the rim and flange forming of a wheel flange; and the spoke of the hub is subjected to shrinkage and precise forming. According to the hub forming method, the production procedure can be simplified, the forming efficiency can be improved, the material utilization rate can be increased, and the production cost can be reduced. 本申请提供一种轮毂成形方法。该轮毂成形方法包括：选取环形坯料作为加工原料；对环形坯料进行正挤压成形，一次性同时完成轮毂的轮辐与轮辋的预成形；对预成形的环形坯料进行轮辋的扩口和轮缘的翻边成形；对轮毂的轮辐进行缩孔和精确成形。根据本申请的轮毂成形方法，能够简化生产工序，提高成形效率，提高材料利用率，降低生产成本。