| 薄壁管旋转锻造3D数值模拟 |
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| 引用本文： | 尹冠人,胡成亮,赵震. 薄壁管旋转锻造3D数值模拟[J]. 锻压技术, 2009, 34(3). DOI: 10.3969/j.issn.1000-3940.2009.03.004 |
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| 作者姓名： | 尹冠人 胡成亮 赵震 |
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| 作者单位： | 上海交通大学,塑性成形工程系,上海,200030;上海交通大学,塑性成形工程系,上海,200030;上海交通大学,塑性成形工程系,上海,200030 |
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| 摘 要： | 应用弹塑性大变形有限元法对国际冷锻组织2008标准考题"薄壁管旋转锻造"进行全过程模拟,分析冷态高频旋转锻造的受力情况和变形特点.探讨不同摩擦条件对旋锻后锻件尺寸的影响,摩擦因子取0.3时,模拟结果与物理试验结果吻合较好;由于旋转锻造的局部非连续增量成形方式,坯料的变形按"点-线-面"递增且呈均匀周向分布,成形力呈阶梯状上升,趋稳后小幅振荡前进;摩擦对旋转锻造总成形力几乎没有影响.
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| 关 键 词： | 旋转锻造 有限元 薄壁管 摩擦因子 |
3D simulation of rotary swaging process for thin-walled tube |
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| YIN Guan-ren,HU Cheng-liang,ZHAO Zhen. 3D simulation of rotary swaging process for thin-walled tube[J]. Forging & Stamping Technology, 2009, 34(3). DOI: 10.3969/j.issn.1000-3940.2009.03.004 |
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| Authors: | YIN Guan-ren HU Cheng-liang ZHAO Zhen |
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| Affiliation: | Department of Plasticity Technology;Shanghai Jiao Tong University;Shanghai 200030;China |
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| Abstract: | A large deformation elastic-plastic finite element model was developed to simulate the rotary swaging process of thin-walled tube, a benchmark from International Cold Forging Group (ICFG) 2008. Based on the simulation results, the effects of cold rotary swaging with high-frequency pulse stroking on the distributions of different field variables such as stress and strain were clarified; the different friction contributions were discussed as well. A comparison between the calculated results and experimental d... |
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| Keywords: | rotary swaging FEA thin-walled tube friction coefficient |
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