ZK60镁合金薄板材胀形数值模拟研究  

Numerical Simulation on Bulging of ZK60 Alloys Sheet

作　　者：彭伟[1] 程文杰[2] 朱东方[3] 

机构地区：[1]河南职业技术学院,河南郑州450046 [2]河南科技大学材料与工程学院,河南洛阳471003 [3]洛阳师范学院教育科学学院,河南洛阳471022

出　　处：《热加工工艺》2012年第13期7-9,12,共4页Hot Working Technology

基　　金：国家自然科学基金项目(51105132);河南省基础与前沿技术研究计划项目(112300410166)

摘　　要：通过热拉伸试验获得ZK60镁合金的最佳力学性能参数,按照杯突实验的要求利用有限元分析软件DEFORM-3D对ZK60镁合金胀形过程进行了模拟,得到了ZK60镁合金在370℃时极限杯突值,分析了ZK60镁合金板材胀形过程中金属流动规律。结果表明,变形初期金属沿轴向流动,随着变形的加剧有部分金属同时沿径向和轴向流动。随着变形增加,等效应变区域发生转移,凸模所受载荷先增后减,为生产提供了依据。The best mechanical performance parameters of magnesium alloys ZK60 were obtained by hot tensile test. According to the standards of punch test, the bulging process of ZK60 alloy sheet was simulated by finite element analysis software DEFORM-3D. The limit ericson value of ZK60 alloy was obtained at 370~C, the flow pattern was discussed during the bulging process of ZK60 sheet. The results show that the metal flows along axial and part of metal flows along radial and axial direction with the increase of deformation. With the increase of deformation, the punch load increases first and then decreases, which can provide reference for product.

关 键 词：ZK60镁合金 热拉伸 数值模拟 

分 类 号：TG316[金属学及工艺—金属压力加工]