| 管的高压扭转成形工艺的数值模拟与研究 |
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| 引用本文： | 安钰坤,王进,褚忠,董万鹏. 管的高压扭转成形工艺的数值模拟与研究[J]. 材料导报, 2011, 0(Z1) |
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| 作者姓名： | 安钰坤 王进 褚忠 董万鹏 |
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| 作者单位： | 青岛理工大学机械工程学院;上海交通大学国家模具CAD工程研究中心; |
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| 基金项目： | 山东省自然基金(ZR2010EQ027) |
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| 摘 要： | 管的高压扭转成形是一种制备超细晶材料的新技术,也是近年来比较受关注的一种剧烈塑性成形方法。研究了在二维状况其余条件均相同的情况下,试样厚度对试样应变的影响。经数值模拟的结果与分析得出管状试样等效塑性应变由试样内圈到外圈逐渐减小的规律,并得出壁厚不是试样应变的关键因素。在一定的壁厚下影响试样材料应变的关键因素是试样的平均半径,平均半径越大则试样的应变也就越大。
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| 关 键 词： | 管的高压扭转 超细晶 薄壁圆管 应变 |
Numerical Simulation and Research of High-pressure Tube Twisting Molding Process |
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| AN Yukun,WANG Jin,CHU Zhong,DONG Wanpeng. Numerical Simulation and Research of High-pressure Tube Twisting Molding Process[J]. Materials Review, 2011, 0(Z1) |
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| Authors: | AN Yukun WANG Jin CHU Zhong DONG Wanpeng |
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| Affiliation: | AN Yukun~1,WANG Jin~1,CHU Zhong~1,DONG Wanpeng~2 (1 Department of Mechanical Engineering,Qingdao Technological University,Qingdao 266033,2 National Die & Mold CAD Engineering Research Center,Shanghai Jiao Tong University,Shanghai 200030) |
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| Abstract: | High-pressure tube twisting is a new kind of material technology by making ultra-fine grained metal and this technology is a kind of severe plastic deformation processes which was concerned in recent years.For better understanding of the method of strain change mechanism,how the thickness of the sample influent the strain of sample in the same conditions of the two-dimensional situation was mainly studied.Numerical simulation results and analysis obtains that tubular specimens total equivalent plastic strai... |
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| Keywords: | high-pressure tube twisting ultra-fine grained metal thin-walled tube material strain |
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