Numerical simulation evolution of shear strain and crystallographic textures during snake rolling of Al-Mg-Si alloy plate

被引：6

作者：

Ling L. ^{[1
]}

Tang J. ^{[1
]}

Liu W. ^{[2
]}

Zhang X. ^{[1
]}

Chen L. ^{[1
]}

Deng Y. ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Central South University, Changsha

[2] College of Electromechanical Engineering, Hunan University of Science and Technology, Xiangtan

来源：

Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2017年 / 48卷 / 09期

基金：

中国国家自然科学基金;

关键词：

AA6016 aluminum alloy; Finite element simulation; Shear texture; Snake rolling;

D O I：

10.11817/j.issn.1672-7207.2017.09.004

中图分类号：

学科分类号：

摘要：

The influences of velocity difference, horizontal offset between two rollers and pass reduction on bending behavior of AA6016 aluminum alloy plate in snake rolling (SR) were investigated by finite element simulations. The through-thickness distribution and evolution of strain in SR were compared with that in conventional symmetry rolling (CR). The results show that within certain velocity ratio (1.00~1.20) the plates tend to bend to the slower roller when velocity ratio increases. With the increase of the offset distance, the plates tend to bend to the faster roller. Greater pass reduction can lead to bending to the slower roller, except when there is horizontal offset and the velocity ratio is less than 1.05. In comparison with CR, the distribution of contact shear stress and strain of SR is asymmetric, normal strain of upper surface layer is larger than that of the lower surface layer, and the distribution of shear strain shifts upward. But there is no obvious difference in equivalent strain. With the introduction of shear deformation in the snake-rolled sheet in, it is easier to form through-thickness <111>//ND (Normal direction) texture. © 2017, Central South University Press. All right reserved.

引用

页码：2279 / 2287

页数：8

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