| 板料多点与渐进复合成形方法及数值模拟 |
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| 引用本文： | 李湘吉,李明哲,蔡中义,王少辉. 板料多点与渐进复合成形方法及数值模拟[J]. 吉林大学学报(工学版), 2009, 0(Z1) |
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| 作者姓名： | 李湘吉 李明哲 蔡中义 王少辉 |
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| 作者单位： | 吉林大学辊锻工艺研究所; |
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| 基金项目： | 国家自然科学基金项目(50605028);;吉林大学“985工程”项目 |
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| 摘 要： | 提出了多点成形与渐进成形技术相结合的板料复合成形新方法,说明了两种复合成形方式的成形原理和成形过程。建立了复合成形分析的有限元模型,对球面件的复合成形过程进行数值模拟,分析了复合成形过程产生的压痕问题及其抑制方法。结果表明,采用弹性垫技术可以有效抑制复合成形过程产生的压痕缺陷,使成形件表面光滑;球面件上等效应力和厚度的变化过程及分布规律表明,随着增量步的加大,板料接触点处的等效应力随之增加,板料的厚度逐渐减薄。复合成形实验显示,数值模拟结果与实验结果基本吻合。
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| 关 键 词： | 材料合成与加工工艺 板料 多点成形 渐进成形 复合成形 数值模拟 |
Numerical simulation on MPF-IF combined forming process of sheet metal |
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| LI Xiang-ji,LI Ming-zhe,CAI Zhong-yi,WANG Shao-hui. Numerical simulation on MPF-IF combined forming process of sheet metal[J]. Journal of Jilin University:Eng and Technol Ed, 2009, 0(Z1) |
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| Authors: | LI Xiang-ji LI Ming-zhe CAI Zhong-yi WANG Shao-hui |
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| Affiliation: | Roll Forging Research Institute;Jilin University;Changchun 130022;China |
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| Abstract: | Based on the characteristic of multi-point forming(MPF) technology and incremental forming(IF) technology for sheet metal,the combined forming method base on MPF and IF was putted forward,and the forming principle and forming process were illustrated.A finite element(FE) model was built, and the MPF-IF combined forming process of the sphere parts was simulated by explicit FE analysis software.The dimpling defect of combined forming process and the suppress method were investigated.The simulation results sho... |
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| Keywords: | materials synthesis and processing technology sheet metal multi-point forming incremental forming combined forming numerical simulation |
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