| 回转角对AZ31镁合金管材冷轧成形过程的影响 |
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| 引用本文： | 薛春,楚志兵,苏辉,李伟,马立峰,李玉贵.回转角对AZ31镁合金管材冷轧成形过程的影响[J].稀有金属材料与工程,2020,49(12):4041-4049. |
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| 作者姓名： | 薛春 楚志兵 苏辉 李伟 马立峰 李玉贵 |
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| 作者单位： | 太原科技大学 重型机械教育部工程研究中心,太原科技大学 重型机械教育部工程研究中心,太原科技大学 重型机械教育部工程研究中心,太原科技大学 重型机械教育部工程研究中心,太原科技大学 重型机械教育部工程研究中心,太原科技大学 重型机械教育部工程研究中心 |
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| 基金项目： | 国家自然科学基金（U1710113），国家重点研发计划项目（2018YFB1307902），中国博士后科学基金项目（2017M622903），山西省重点研发计划项目（201703D111003,201703D111002,201703D121008）,山西省研究生联合培养基地人才培养项目（2018JB33），山西省研究生教育创新项目（2019SY482） |
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| 摘 要： | 回转角是三辊式冷轧无缝管材过程中的关键工艺参数,本文以冷轧AZ31镁合金管材为研究对象,通过对不同回转角下的冷轧过程进行了完整的仿真,对比分析了不同回转角在各特征变形段对等效应力、等效塑性应变及节点温度的影响规律,结果表明随着回转角的增大,等效应力、等效塑性应变以及节点温度均增大。借助元胞自动机模型以及实验等手段,通过实验与数值仿真结果对比分析,探明了晶粒在轧制过程中产生连续再结晶并细化的初步组织演变规律,获得了50°的回转角可以更好的满足工艺要求,为镁合金管材冷轧成形回转角的选择提供依据。
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| 关 键 词： | 三辊式冷轧，回转角，数值仿真，元胞自动机 |
| 收稿时间： | 2019/11/17 0:00:00 |
| 修稿时间： | 2020/11/4 0:00:00 |
Influence of Rotation Angle on the Cold Rolling Forming Process of AZ31 Magnesium Alloy Tubes |
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| XUE Chun,CHU Zhibing,SU Hui,LI Wei,MA Lifeng and LI Yugui.Influence of Rotation Angle on the Cold Rolling Forming Process of AZ31 Magnesium Alloy Tubes[J].Rare Metal Materials and Engineering,2020,49(12):4041-4049. |
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| Authors: | XUE Chun CHU Zhibing SU Hui LI Wei MA Lifeng and LI Yugui |
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| Affiliation: | Heavy Machinery Engineering Research Centre,Taiyuan University of Science and Tech,Taiyuan,Heavy Machinery Engineering Research Centre,Taiyuan University of Science and Tech,Taiyuan,Heavy Machinery Engineering Research Centre,Taiyuan University of Science and Tech,Taiyuan,Heavy Machinery Engineering Research Centre,Taiyuan University of Science and Tech,Taiyuan,Heavy Machinery Engineering Research Centre,Taiyuan University of Science and Tech,Taiyuan,Heavy Machinery Engineering Research Centre,Taiyuan University of Science and Tech,Taiyuan |
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| Abstract: | Rotation angle is a key parameter in the processing of three-roller, cold-rolled seamless steel tubes. Using a cold-rolled AZ31 magnesium alloy tube as the research object .Based on the cold-rolling process under different rotation angles, the present paper conducts a comparison and analysis of the effects of different rotation angles on the characteristics of the deformation equivalence effect force, equivalent plastic strain and regularity of the influence of node temperature. Our study shows that increased rotation angles increase the equivalent stress, equivalent plastic strain and node temperature. With the aid of the automaton model and experimental means ,through the experiment and numerical simulation results contrast analysis, the author finds out the grain produced in the process of rolling in the continuous refinement of recrystallization and preliminary organization evolution law. The results reveal that a 50° rotation angle can sufficiently meet technical requirements and provide evidence for the appropriate selection of rotation angles for cold-rolled magnesium alloy tubes. |
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| Keywords: | Three-roll cold rolling Rotation angle Numerical simulation Cellular automat |
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