能否获得具有某种机械性能、特定几何形状,高质量,高精度的挤压制品,主要取决于最佳变形方案的选择与设计。方案的优劣直接关系到冷挤压工艺的成败。但是,目前还缺少有关复杂零件多工序挤压成形的成形方法、工艺程序的确定、经济挤压次数及半 The availability of extruded products with certain mechanical properties, specific geometries, high quality and high precision depends mainly on the choice and design of the optimum deformation scenario. The merits of the program directly related to the success of cold extrusion process. However, there is still a lack of forming methods for multi-step extrusion of complex parts, determination of process procedures, number of economic extrusion and half