| 圆坯一次性横锻时的应力应变场 |
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| 引用本文： | 李胜祗,陈大宏,孙中建,李连诗.圆坯一次性横锻时的应力应变场[J].北京科技大学学报,2002,24(1):49-53. |
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| 作者姓名： | 李胜祗 陈大宏 孙中建 李连诗 |
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| 作者单位： | 1. 安徽工业大学冶金工程系,马鞍山243002;2. 北京科技大学压力加工系,北京,100083 |
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| 基金项目： | 安徽省教育厅科研项目;99JR0178ZD; |
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| 摘 要： | 用MARC/Autoforge有限元软件,对圆坯一次横锻过程进行了三维热-力耦合数值模拟,研究了金属变形的发展、流动规律,其结果与物理模拟研究的结果相吻合.还分析了工件的应力分布以及工具与工件的接触应力分布形态.通过分析发现:在圆坯一次性横锻过程中,尽管工件端部静水压力不大,但存在较大的横向拉应力.
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| 关 键 词： | 圆坯 横锻 塑性变形 应力与应变 数值模拟 有限元法 |
| 修稿时间： | 2001年2月12日 |
Stress and Strain Field of Round-Billet during Cross-Forging Process with Only One Strike |
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| LI Shengzhi,CHEN Dahong,SUN Zhongjian,LI Lianshi.Stress and Strain Field of Round-Billet during Cross-Forging Process with Only One Strike[J].Journal of University of Science and Technology Beijing,2002,24(1):49-53. |
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| Authors: | LI Shengzhi CHEN Dahong SUN Zhongjian LI Lianshi |
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| Abstract: | With the aid of FE code MARC/Autoforge, two-roll cross-forging process was simulated, and the development of deformation and the law of metal-flow were studied. The result from the simulation is in good agreement with that of the physical simulations. The stress distribution in the work-piece and contact pressure between the work-piece and tool were also analyzed. It is discovered that in cross-forging process with only one strike of the press large lateral stretch stress exists, although the hydrostatic pressure is positively small in the center of the round. |
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| Keywords: | Round billet Cross-forging Deformation Strain/Stress Numerical simulation FEM |
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