AA7050铝合金板材异径异步轧制变形的有限元模拟  

Finite Element Simulation of Different Roll Diameters Rolling Deformation of AA7050 Aluminum Alloy Sheet

作　　者：黄双凤[1] 袁晓征[2] 

机构地区：[1]中南大学材料科学与工程学院,湖南长沙410083 [2]黔西南民族职业技术学院机械与电子工程系,贵州兴义562400

出　　处：《热加工工艺》2015年第23期151-153,共3页Hot Working Technology

摘　　要：采用ABAQUS软件建立了AA7050铝合金板材异径异步轧制过程的有限元模型并进行了模拟,研究了不同辊径及压下率下该合金轧板的弯曲行为,并对比了异径异步轧制与对称轧制轧板的变形特征及轧辊受力情况。结果显示:异径异步轧制可以得到平直轧板,且能提高轧板的应变及其沿法向分布的均匀性,但并不是所有异速比下的异径异步轧制都能降低轧制力。The finite element model of the different roll diameters rolling process of AA7050 aluminum alloy sheet was established and its rolling process was simulated by using ABAQUS software. The bending behaviors of the rolled sheets were investigated under different roll diameters and reduction ratios. The deformation and rolling force between the different roll diameters rolling and symmetric rolling were contrasted. The results show that, the different roll diameters rolling can obtain straight sheet and improve the strain of the rolled sheets and its uniformity along the normal direction. But different roll diameter rolling of not all different speeds ratios can reduce the rolling force.

关 键 词：高强高韧铝合金 非对称轧制 有限元模拟 

分 类 号：TG339[金属学及工艺—金属压力加工]