结合弧面凸轮的结构特点,基于Deform材料成形软件,应用三维刚塑性理论和有限元分析方法建立了弧面凸轮等温挤压成形模型,分析了弧面凸轮等温挤压成形过程中应力应变,并对弧面凸轮挤压件形状和凹模型腔进行了优化设计。通过在凸脊侧面留有2 mm精加工余量,添加敷料于弧面倒扣部位,并在各连接表面之间采用直径1 mm的圆角过渡,可保障挤压工艺良好的填充性和脱模性。 According to the structural characteristics of the arc cam, an isothermal extrusion forming model of the arc cam was established based on the Deform material forming software by using the three-dimensional rigid plasticity theory and the finite element analysis method. The stress and strain during the isothermal extrusion forming of the arc cam The shape of the arc cam extrusion and the cavity of the concave mold are optimized. By maintaining a 2 mm finishing allowance on the side of the ridges, adding a dressing to the cambered surface and using a 1 mm diameter fillet between the attachment surfaces ensures good filling and release of the extrusion process Sex.