利用有限元分析技术对某变速器惰轮热挤成形过程进行了研究,得出了固定凹模结构和浮动凹模结构的惰轮挤压成形特点以及筒形毛坯和实心毛坯成形惰轮的优缺点,确定了实心毛坯挤压成形惰轮的工艺方案。在此基础上,进行了大量的工艺试验,证明了变速器惰轮热挤成形工艺的可行性。该工艺不仅降低了材料成本,而且可以显著提高惰轮滚齿工序的加工效率,适合大批量生产。 The finite element analysis technology was used to study the hot extrusion process of a transmission idler. The characteristics of idler extrusion with fixed die structure and floating die structure, as well as the advantages and disadvantages of cylindrical blank and solid blank forming idler , To determine the solid blank extrusion forming process idler. On this basis, a large number of process tests were carried out to prove the feasibility of the hot extrusion forming process of the transmission idler. The process not only reduces the material cost, but also can significantly improve the processing efficiency of idler gear hobbing process and is suitable for mass production.