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Abstract：
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Sheet-metal forming process is a very complex plastic forming process,and the result of forming is influenced by many factors directly or indirectly.In this paper,the numerical results are based on Forge2D finite element analysis(FEA) software using elasto-plastic finite-element method for the stamping technologies of a automobile hubcap part in order to open out the deforming behavior,predict and prevent process defects such as,local thinning and crack.The design of the tools and the process parameters can thus be improved.The time and the costs of the manufacturing of the tools are reduced,so that it is effective and cost-effective to use the dynamic explicit finite element methods for simulation of sheet metal forming production.In this paper,three forming numerical simulation schemes are designed respectively.The forming character of blank in every scheme is contrasted,and a better forming scheme is obtained.
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Funds：
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国家自然科学基金资助项目(50275100);;
四川省重点科技攻关资助项目(03GG010-002)
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AuthorIntro：
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Reference：
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[1]Zimniak Z.Problems of multi-step forming sheet metal processdesign[J].Journal of Materials Processing Technology,2000,106(1 3):152 158.
[2]冯兰,蔡英文何丹农,等.金属板料成形数值模拟的研究现状[J].塑性工程学报,2004,(6):1 6.
[3]张鼎承.冲模设计手册:模具手册之四[M].北京:机械工业出版社,1988.
[4]贾建军,王俊彪.多道次变薄拉深机理分析[J].锻压技术,1997,(2):28 31.
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