摘要
通过实验研究确定了AZ31镁合金网格壁板级进压弯成形工艺参数,获得了合格的弯曲件。分析了弯曲件曲率半径的影响因素及规律,确定了AZ31镁合金网格壁板弯曲件曲率半径与弯曲凹模间距、压下高度之间的数学关系模型,分析了级进压弯工艺参数对镁合金壁板成形后晶粒尺寸的影响规律。结果表明,模型计算结果与实验结果相吻合,最大相对误差为5.7%。随着弯曲变形系数的增大,晶粒尺寸随之减小;随着变形温度的提高,晶粒尺寸随之增大。
The progressive bending process parameters of AZ31 magnesium alloy grid panel were determined by experimental study, and the qualified bending parts were obtained. The influencing factors and rules of curvature radius of bending parts were analyzed. The mathematical relationship model between curvature radius of AZ31 magnesium alloy grid panel bending parts and bending die spacing and reduction height was established. The effect of progressive bending parameters on the grain size of magnesium alloy panel was analyzed. The results show that the calculation results of the model are in good agreement with the experimental results, and the maximum relative error is 5.7%. With the increase of bending deformation coefficient, the grain size decreases, and with the increase of deformation temperature, the grain size increases.
作者
王忠堂
吴凯琦
张宏亮
李艳娟
梁海成
WANG Zhongtang;WU Kaiqi;ZHANG Hongliang;LI Yanjuan;LIANG Haicheng(School of Materials Science and Engineering,Shenyang Ligong University,Shenyang 110159,China)
出处
《热加工工艺》
北大核心
2023年第3期88-91,共4页
Hot Working Technology
基金
国家自然科学基金资助项目(51575366)
辽宁省教育厅资助项目(LG202010)。
关键词
AZ31镁合金
网格壁板
级进压弯
实验研究
AZ31 magnesium alloy
grid panel
progressive bending
experimental study
