| 轴对称体扭压成形过程的热力耦合有限元分析 |
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| 引用本文： | 章争荣,肖小亭,刘易凡,薛克敏.轴对称体扭压成形过程的热力耦合有限元分析[J].装备环境工程,1998(3). |
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| 作者姓名： | 章争荣 肖小亭 刘易凡 薛克敏 |
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| 作者单位： | 广东工业大学五山校区模具教研室!510643(章争荣)，广东工业大学机械工程系(肖小亭，刘易凡)，哈尔滨工业大学材料科学与工程学院(薛克敏) |
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| 摘 要： | 扭压成形工艺和一般镦粗相比有许多优点.考虑到成形过程中温度与变形间的热力耦合效应,运用刚粘塑性有限元方法,详细分析了高温下轴对称体的扭压成形过程中的变形规律.结果表明:扭压成形能促使变形均匀,增加变形量;成形温度、摩擦和变形速度对整个变形过程产生较大的影响.
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| 关 键 词： | 扭压成形 刚粘塑性 有限元方法 热力耦合 |
Coupled Thermo -mechanical FEM Analysis of Twist -compression Deformation Process |
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| Guangdong University of Technology & Harbin Institute of Technology,Zhang Zhengrong,Xuekemin,Xiao Xiaoting,Liu Yifan.Coupled Thermo -mechanical FEM Analysis of Twist -compression Deformation Process[J].Equipment Environmental Engineering,1998(3). |
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| Authors: | Guangdong University of Technology & Harbin Institute of Technology Zhang Zhengrong Xuekemin Xiao Xiaoting Liu Yifan |
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| Institution: | Guangdong University of Technology & Harbin Institute of Technology Zhang Zhengrong Xuekemin Xiao Xiaoting Liu Yifan |
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| Abstract: | Twist-compression deformation has many advantages. In this paper ,3D thermo-rigid-viscoplastic FEM of compressible materials are employed to analyse the deformation behavior during metal twist- compression forming of cylinder at high tempera-ture. The results demonstrate that, compared with upsetting .twist- compression forming can make deformation homogenous and increase the plastic deformation. Temperature, friction and deformation velocity all have effects on the whole process of twist-compression deformation. |
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| Keywords: | Twist -compression Thermo - mcthanical Rigid -viscoplastic FEM |
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