DOI：10.3969/j.issn.1672-3872.2025.12.032
基金项目：泸州市科技局课题“基于特种轧制技术制备高性能镁合金板材的应用基础研究”（2021JYJ-90）
作 者：胡 冬 ，梅 静 ，刘 惺 ，吴 胜（四川化工职业技术学院，四川 泸州 646000）
摘 要：【目的】模拟镁合金异步轧制过程，改善镁合金织构，提升镁合金板材的二次成形能力。【方法】以AZ31镁合金板材为研究对象，采用DEFORM有限元软件进行了数值模拟，在高温、高速条件下研究了异步轧制过程中的镁合金板材变形行为，分析了压下量对异步轧制板材变形程度、应力、应变以及轧制力的影响。【结果】1）随着轧制压下量增加，板材翘曲变形程度增加，但当轧制压下量达到50%时，板材翘曲变形程度出现缓和；2）板材应力、应变会随轧制压下量增加而出现线性增大的趋势；3）随着板材被咬入轧辊，轧制力急剧增加且达到峰值，并且轧制力随轧制压下量增加呈现线性增大趋势。【结论】本研究可为镁合金特种轧制成形提供可靠的工艺参数，有效调控微观组织演变，抑制缺陷产生，提升成形精度与综合性能。
关键词：异步轧制；有限元模拟；轧制压下量；翘曲变形
Finite Element Simulation of Asynchronous Rolling Process of AZ31 Magnesium Alloy Sheet under High Temperature and High Speed Conditions
Author: Hu Dong, Mei Jing, Liu Xing, Wu Sheng (Sichuan Vocational College of Chemical Technology, Luzhou 646000, China)
Abstract: [Objective] To simulate the asynchronous rolling process of magnesium alloys, improve the texture of magnesium alloys, and enhance the secondary forming ability of magnesium alloy sheets. [Method] AZ31 magnesium alloy sheet was taken as the research object, and numerical simulation was carried out using DEFORM finite element software. The deformation behavior of magnesium alloy sheet during asynchronous rolling process was studied under high temperature and high speed conditions, and the influence of reduction on the deformation degree, stress, strain, and rolling force of asynchronous rolling sheet was analyzed. [Result] 1) As the rolling reduction increases, the degree of plate warping deformation increases. However, when the rolling reduction reaches 50%, the degree of plate warping deformation becomes milder. 2) The stress and strain of the plate will show a linear increase trend with the increase of rolling reduction. 3) As the sheet is bitten into the rolling mill, the rolling force increases sharply and reaches its peak, and the rolling force shows a linear increasing trend with the increase of rolling reduction. [Conclusion] This study can provide reliable process parameters for the special rolling forming of magnesium alloys, effectively regulate the microstructure evolution, suppress defect generation, and improve forming accuracy and comprehensive performance.
Keywords: asynchronous rolling; finite element simulation; rolling reduction; warping and deformation
引文信息：[1]胡冬，梅静，刘惺，等.高温高速条件下AZ31镁合金板材异步轧制过程有限元模拟[J].南方农机，2025，56(12)：117-120.
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