| 板材多点成形中压痕缺陷的分析与控制 |
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| 引用本文： | 蔡中义,李明哲,付文智.板材多点成形中压痕缺陷的分析与控制[J].锻压技术,2003,28(1):16-19. |
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| 作者姓名： | 蔡中义 李明哲 付文智 |
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| 作者单位： | 吉林大学辊锻研究所,130025 |
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| 基金项目： | 国家自然科学基金资助项目 (50 2 750 63)，“十五”国家重点科技攻关资助项目 (2 0 0 1BA2 0 3B1 1 ) |
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| 摘 要： | 压痕是多点成形中特有的成形缺陷，是板材多点成形中必须解决的问题。本文首先对多点成形中压痕的形成进行了力学分析，给出了抑制压痕的方法，并通过典型件的数值模拟及成形实验说明了弹性垫技术及变路径多道成形技术消除压痕缺陷的有效性。
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| 关 键 词： | 板材 多点成形 压痕 力学分析 数值模拟 弹性垫技术 |
Analysis and control of dimpling in multi-point forming for sheet metal |
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| Jilin University of Technology,Cai Zhongyi,Li Mingzhe,Fu Wenzhi.Analysis and control of dimpling in multi-point forming for sheet metal[J].Forging & Stamping Technology,2003,28(1):16-19. |
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| Authors: | Jilin University of Technology Cai Zhongyi Li Mingzhe Fu Wenzhi |
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| Affiliation: | Jilin University of Technology Cai Zhongyi Li Mingzhe Fu Wenzhi |
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| Abstract: | Dimples is a particular defects in Multi\|point forming (MPF) of sheet metal, it is a problem that the designer have to overcome in MPF. In this paper, through the mechanics analysis of dimpling in MPF process, the methods to restrain dimple are suggested. Numerical results and forming test of typical specimens demonstrate that dimples can be eliminated effectively by the techniques of elastic cushion and multi\|step MPF. |
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| Keywords: | Sheet metal Multi\|point forming Dimpling |
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