汽车零件散热片材料为纯铝1100,呈多而窄的槽形。传统成形工艺为铣削加工,因铝极易粘刀,生产效率很低,而且浪费材料。新工艺采用冷挤压成形。通过有限元软件模拟了该散热片的反挤压成形过程,成形效果良好,能满足零件尺寸、精度等方面的要求。研究成果可为真实冷挤压成形工艺提供参考。 Automotive components heat sink material is pure aluminum 1100, was more and narrow groove. The traditional forming process for the milling process, easy to stick because of aluminum knife, the production efficiency is very low, but also a waste of materials. The new technology using cold extrusion. The finite element software simulation of the heat sink reverse extrusion process, forming a good effect, to meet the parts size, accuracy and other requirements. The research results can provide a reference for the real cold extrusion forming process.