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中文摘要：
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。
英文摘要：
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.
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Mechanism of unequal deformation during large-scale complex integral component isothermal local load
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