汽车镁合金轮毂等温挤旋成型工艺优化与试验  

Technology of Magnesium Alloy Car's Wheel Hub on Spinning Shaping

作　　者：马春生[1] 张治民[2] 郭玉明[3] 

机构地区：[1]中北大学机械工程与自动化学院,太原030051 [2]中北大学材料科学与工程学院,太原030051 [3]山西农业大学工学院,太谷030801

出　　处：《农业机械学报》2012年第3期223-229,共7页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(50735005)

摘　　要：以汽车镁合金轮毂为研究对象,根据等温挤旋成型新工艺要求,自行设计了挤旋成型装备,利用有限元方法对轮毂在径向上产生的连续局部塑性变形过程进行数值模拟,分析变形规律,并通过正交试验优化工艺参数。挤旋成型试验结果表明,新工艺明显增加了轮毂的连续变形区尺寸,变形路径合理,显著提高了成型效率与加工精度。Take magnesium alloy car＇ s wheel hub as the investigated subject, and based on the advanced technology of magnesium alloy car＇ s isothermal spinning shaping, the equipment of spinning shaping was developed. The continuous and partial plastic deformation process of wheel hub radials were numerically simulated through finite element method, and deformation regulations were also analyzed and process parameters were optimized by orthogonal tests. The results of the experiments showed that this new technology significantly increased the size of continuous deformation zone, made deformation paths reasonable, and greatly improved shaping efficiency and machining accuracy.

关 键 词：汽车 镁合金轮毂 挤旋成型 正交试验 参数优化 

分 类 号：TG376.2[金属学及工艺—金属压力加工] TG146.22[一般工业技术—材料科学与工程]