Transactions of Materials and Heat Treatment

Title：Research on anisotropy for 7050 aluminum alloy sheet

Authors： Ren Pingping1 Hu Hui′e2

Unit：

KeyWords：

ClassificationCode：TG146.21

year,vol(issue):pagenumber：2021,46(9):163-168

Abstract：

The anisotropy in the cold forming process of aluminum alloy affects the assembly gap during subsequent welding and further affects the welding quality. Therefore, for this problem, the thickness anisotropy and in-plane anisotropy of 7050 aluminum alloy sheet during cold deformation were studied by single crystal analysis method. The results show that when 7050 aluminum alloy sheet is stretched along the rolling direction, the deformation ability in width direction is less than that in thickness direction, and when stretching along the width direction, the deformation ability in the rolling direction and the thickness direction is basically the same. In addition, the deformation direction has little effect on the in-plane anisotropy of the mechanical properties for 7050 aluminum alloy. However, the anisotropy of 7050 aluminum alloy sheet during plastic deformation is mainly due to brass {110}<112> texture formed during the production process. When brass {110} <112> texture is mainly contained in aluminum alloy, the blanking part of the rolled sheet is controlled to make the subsequent deformation mainly in the width direction to reduce the anisotropy in the plasticity forming process and improve the welding quality.

Funds：

国家自然科学基金资助项目（NSFC51105373）

任平平（1977-），女，硕士，二级调研员 E-mail：82351118@qq.com 通信作者：胡会娥（1976-），女，博士，教授 E-mail：huhuie@163.com

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