Analysis of Neutral Layer Offset Laws of AZ31B Magnesium Alloy During Straightening Under Thermo-Mechanical Coupling Model

被引：0
|
作者：
Wang Yadong [1 ]
Liu Cuirong [1 ]
Ma Lifeng [2 ]
Li Qiang [3 ]
Li Yugui [1 ]
Gui Hailian [1 ]
机构：
[1] Taiyuan Univ Sci & Technol, Sch Mat Sci & Engn, Taiyuan 030024, Peoples R China
[2] Taiyuan Univ Sci & Technol, Sch Mech Engn, Taiyuan 030024, Peoples R China
[3] Taiyuan Heavy Ind Co Ltd, Technol Ctr, Taiyuan 030024, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2021年 / 50卷 / 12期
关键词：
AZ31B; straightening; temperature; tension-compression asymmetry; thermo-mechanical coupling; neutral layer offset;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To improve the straightening accuracy of magnesium alloy plates, the neutral layer offset low of magnesium plates was analyzed. At room temperature, the plasticity of magnesium alloy is poor and the tension-compression asymmetry is also large. And when the magnesium plate is straightened at room temperature, improper control of the amount of pressure will cause the straightening effect of the magnesium plate to be seriously affects. Therefore, temperature correction is often used to improve the straightening accuracy and the temperature is an important factor affecting the tension-compression asymmetry of magnesium plate. Based on the CaBa2004 tension-compression asymmetry yield criterion and the basic theory of elastoplastic mechanics, the formula for calculating the neutral layer offset in the straightening process of AZ31B magnesium plate was derived. A thermo-mechanical coupling straightening model was established by ABAQUS finite element software to derive the neutral layer offset law at different temperatures, and the neutral layer offset theory was verified by experiment.
引用
收藏
页码：4395 / 4401
页数：7
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