| 铝合金轧制过程中的热力耦合分析 |
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| 引用本文： | 康煜华,刘义伦,何玉辉. 铝合金轧制过程中的热力耦合分析[J]. 锻压技术, 2008, 33(5) |
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| 作者姓名： | 康煜华 刘义伦 何玉辉 |
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| 作者单位： | 湖南科技大学机电工程学院,湖南湘潭411201;中南大学机电工程学院,湖南长沙410083;中南大学机电工程学院,湖南长沙,410083 |
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| 基金项目： | 教育部科学技术研究重点项目 |
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| 摘 要： | 通过铝合金在Gleeble-1500上的实验数据,建立了本构方程.根据弹塑性热力耦合大变形有限元理论,获得了热轧过程中的数值仿真模型,分析了压下率、轧制速度以及接触传热系数等参数对温度和流动应力变化规律的影响,并与某铝厂热轧板带生产过程中不同压下率下的力能参数变化进行了对比,计算结果表明模拟值与实测值吻合较好,误差低于15%.
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| 关 键 词： | 热轧 流动应力 热力耦合 有限元 |
Thermo-mechanical coupled simulation during rolling on aluminum alloys |
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| KANG Yu-hua,LIU Yi-lun,HE Yu-hui. Thermo-mechanical coupled simulation during rolling on aluminum alloys[J]. Forging & Stamping Technology, 2008, 33(5) |
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| Authors: | KANG Yu-hua LIU Yi-lun HE Yu-hui |
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| Affiliation: | KANG Yu-hua1,2,LIU Yi-lun2,HE Yu-hui2(1.College of Electromechanical Engineering,Hunan University of Science , Technology,Xiangtan 411201,China,2.School of Mechanical , Electrical Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | From the measured data for aluminum experiments on Gleeble-1500,the constitutive equation was set up and the hot rolling model was established with the aid of elastic-plastic and thermal-mechanical coupled FEM.The reduction,work roll speed and contact heat transfer coefficient's influence on temperature difference across the thickness of slabs and flow stress curvature were analyzed.The rolling process at different reductions was simulated with the computer mode1,the calculated rolling loads were agreed wel... |
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| Keywords: | hot rolling flow stress thermal-mechanical coupled FEM |
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