汽车蓄能器壳体件挤压成形工艺研究

Research on extrusion forming process of automobile accumulator shell

基于Deform-3D软件平台,通过数值模拟对汽车蓄能器壳体件的挤压成形过程进行工艺优化。建立正交试验方案,分析各个因素对挤压成形过程的影响,以成形载荷作为评判标准确定了最佳工艺参数组合。通过实验最终得到了最佳成形工艺参数为:温挤压模具温度230℃,温挤压坯料温度1000℃,温挤压摩擦系数0.15,温挤压凸模速度12mm.s-1,冷挤压凸模速度8mm.s-1,冷挤压摩擦系数0.08。按照该工艺参数进行实际零件的挤压生产,最终得到了符合要求的成形零件。

The process optimization of automobile accumulator shell extrusion forming was conducted with numerical simulation based on Deform-3 D software platform. The orthogonal test plan was set up and the effects of various factors on the extrusion forming process were analyzed, then the best process parameters were determinded with the forming load as judging standard. The best process parameters finally obtained ： mold temperature 230℃, blank temperature 1000 ℃, friction coefficient 0.15, punch velocity 12 mm ·s-1 for warm extrusion, and punch velocity 8 mm · s-1 , friction coefficient 0. 08 for cold extrusion. The qualified forming parts were obtained from actual extrusion with the parameters.