电极端子冷挤压成形数值模拟与工艺研究

Numerical simulation of cold extrusion and process research for electrode terminal

以管坯镦锻和径向挤压理论为基础,制定了电极端子冷挤压成形工艺。运用有限元软件Deform-3D进行了冷挤压成形过程的模拟,通过对金属流动速度场分析,揭示了电极端子冷挤压过程中金属流动规律和充填规律。另外,得到了载荷与凸模行程的关系曲线。最后参照模拟的工艺参数进行了工艺实验,实验结果与模拟结果吻合,验证了整个工艺过程的可行性。

The forming process of electrode terminals was formulated based on the theory of tube upsetting and radial extrusion.Meanwhile the process of cold extrusion forming was simulated by Deform-3D software.The metal flow and filling rules of electrode terminal in the cold extrusion process were revealed through the analysis of metal flow velocity fields.In addition,the load-stroke curve was obtained.Finally the experiment was done according to the parameters of simulation.The result of test made good agreement to the simulation and the whole process feasibility was verified.