| AZ31 镁合金轧制-剪切-弯曲变形工艺数值模拟研究 |
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| 引用本文： | 蒋伟,周涛,宋登辉,秦梁杰.AZ31 镁合金轧制-剪切-弯曲变形工艺数值模拟研究[J].精密成形工程,2016,8(5):121-125. |
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| 作者姓名： | 蒋伟 周涛 宋登辉 秦梁杰 |
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| 作者单位： | 重庆理工大学 材料科学与工程学院，重庆 400054,1.重庆理工大学 材料科学与工程学院，重庆 400054;2.重庆理工大学 重庆市模具工程技术研究中心，重庆 400054,重庆理工大学 材料科学与工程学院，重庆 400054,重庆理工大学 材料科学与工程学院，重庆 400054 |
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| 基金项目： | 国家自然科学青年基金(51301213)；重庆市基础与前沿研究计划项目(cstc2014jcyjA50008, cstc2016jcyjA0452) |
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| 摘 要： | 目的研究温度和道次压下量的变化对AZ31镁合金轧制-剪切-弯曲变形工艺的影响规律。方法对AZ31镁合金轧制-剪切-弯曲变形过程进行数值模拟,探究变形过程中应力、应变分布规律。结果压下量越大,模具转角处累积的等效应变值越大;随着温度的升高,模具转角处等效应力逐渐减小,等效应变逐渐增大。结论试样在模具转角处发生了剧烈的塑性变形,研究结果为板材的制备提供了依据。
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| 关 键 词： | AZ31 镁合金 轧制-剪切-弯曲 数值模拟 塑性变形 |
| 收稿时间： | 2016/7/22 0:00:00 |
| 修稿时间： | 2016/9/10 0:00:00 |
Numerical Simulation of Rolling-Shearing-Bending Deformation Process for AZ31 Magnesium Alloy |
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| JIANG Wei,ZHOU Tao,SONG Deng-hui and QIN Liang-jie.Numerical Simulation of Rolling-Shearing-Bending Deformation Process for AZ31 Magnesium Alloy[J].Journal of Netshape Forming Engineering,2016,8(5):121-125. |
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| Authors: | JIANG Wei ZHOU Tao SONG Deng-hui and QIN Liang-jie |
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| Affiliation: | College of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China,1.College of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China;2.Chongqing Mold Engineering Technology Research Center, Chongqing University of Technology, Chongqing 400054, China,College of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China and College of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China |
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| Abstract: | The work aims to study the influence of temperature and pass reduction on the rolling-shearing-bending deformation process of AZ31 magnesium alloy. Numerical simulation was conducted for the deformation process of rolling-shearing-bending of AZ31 magnesium alloy to find out the distribution of stress and strain in the process of deformation. The results showed that the greater the reduction, the larger the equivalent strain accumulation at the corner of the die. As the temperature increased, the equivalent stress gradually decreased, and the equivalent strain gradually increased. In conclusion, severe plastic deformation occurs at the corner of the die. The research results provide reference for the preparation of sheet. |
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| Keywords: | AZ31 magnesium alloy rolling-shearing-bending numerical simulation plastic deformation |
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