温 -冷精锻综合成形是一种先进的金属塑性加工工艺 ,近年来在汽车工业中得到了广泛应用 ,并有取代传统的热锻成形的趋势。汽车后轴径是汽车工业中的典型锻件。本文分析了该零件的精锻加工特性 ,建立了其温 -冷精锻成形的有限元模型 ,根据有限元仿真结果确定了该零件的温 -冷精锻综合成形工艺的参数 Warm and cold forging comprehensive forming is an advanced metal and plastic processing technology, in recent years in the automotive industry has been widely used, and to replace the traditional hot forging trend. Rear axle diameter is a typical forgings in the automotive industry. In this paper, the precision forging process of the part is analyzed, and the finite element model of its temperature-cold precision forging is established. According to the finite element simulation results, the parameters of the cold-