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摘要：
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将 1 2× 4J轮辐翻边的变形区看作是平面应力状态 ,从翻边高度与初始孔径变化规律及翻边变形区径向应变和轴向应变的变形规律出发 ,探讨了 1 2× 4J轮辐翻边开裂缺陷的形成原因 ,对现有的翻边成形工艺提出了改进方案。
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Considering the deformation area as the plane stress condition, from the view point of relationship of burring height and the inner hole initial radias and the deformation law of circle strain and radias strain, the real reason of cracking failure is studied during the plate burring process. Furthermore, an improved process is presented.
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基金项目：
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作者简介：
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参考文献：
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1 张立玲圆孔翻边应力应变分析锻压技术,2002(1):14～16
2 余同希塑性力学北京:高等工业出版社,1989.
3 李育文等一种微分型全量弹塑性有限元算法及其应用锻压技术,2000(1):50～51
4 JCSimoAframeworkforelastoplasticdisipationandthemultiplicationde compositionPartOneComputMethsApplMechEngng,1988,66:199～219
5 JCSimoAframeworkforelastoplasticdisipationandthemultiplicationde compositionPartTwoComputMethsApplMechEngng,1988,168:1～31
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