| 斜轧中凸棱斜率对轧件心部应力影响 |
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| 引用本文： | 康永强,刘晋平,胡正寰.斜轧中凸棱斜率对轧件心部应力影响[J].北京科技大学学报,2002,24(3):322-325. |
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| 作者姓名： | 康永强 刘晋平 胡正寰 |
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| 作者单位： | 北京科技大学机械工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金;50035010; |
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| 摘 要： | 应用ANSYS-DYNA有限元软件,对螺旋孑L型斜轧轴类件进行轧制过程的模拟,得到轧件中间横截面的上应力分布曲线,同时分析了凸棱斜率对轧件中心部位应力变化的影响规律.结果认为,凸棱斜率对轧件中心部位主应力和等效应力有较大的影响,轧件心部的应力状态和积累是导致心部疏松的主要原因.
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| 关 键 词： | 螺旋孔型斜轧 有限元 应力 疏松 |
| 修稿时间： | 2001年12月4日 |
Affect of Ridge Slope on the Stress in the Center of Workpiece in Skew Rolling |
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| KANG Yongqiang,LIU Jinping HU Zhenghuan.Affect of Ridge Slope on the Stress in the Center of Workpiece in Skew Rolling[J].Journal of University of Science and Technology Beijing,2002,24(3):322-325. |
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| Authors: | KANG Yongqiang LIU Jinping HU Zhenghuan |
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| Abstract: | Through the study of the process of skew rolling step-axis with the help of FEM software ANSYS-DYNA, the stress on the middle section of the workpiece and the infection of ridge slope to the stress in the center is known. The result indicates the principal stress and Von-Miss stress have great influence on the middle section of the workpiece, the state of stress and the accumulation of the stress are the main reason of the failure. |
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| Keywords: | skew rolling FEM stress flaw |
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