Transactions of Materials and Heat Treatment

Title：Spinning deformation and heat treatment process of 2A12 aluminum alloy

Authors： Zhang Ziqi Li Guoping

Unit： School of Mechanical Engineering University of Jinan

KeyWords： 2A12 aluminum alloy power spinning solution heat treatment aging heat treatment thinning ratio

ClassificationCode：TG376

year,vol(issue):pagenumber：2021,46(12):197-202

Abstract：

In order to improve the mechanical properties and reduce the heat treatment deformation of 2A12 aluminum alloy thin-walled shell, the spinning experiment of 2A12 aluminum alloy at room temperature was conducted by the multi-pass power spinning process, and the influences of thinning ratio, solution heat treatment and aging heat treatment process on the mechanical properties of 2A12 aluminum alloy were investigated and analyzed by combining the spinning deformation and heat treatment process. The experimental results show that the mechanical properties of aluminum alloy after water-cooled solution are better than those after vacuum-air-cooled solution, its tensile strength and elongation after water-cooled solution are 56-90 MPa and 3.2%-4.7% higher than those after vacuum-air-cooled solution respectively. Furthermore, the aluminum alloy workpiece inevitably produces a certain deformation after the water-cooled solution, and the accuracy of the workpiece can be improved to a certain extent by the spinning process. Due to the work hardening, the mechanical properties of the workpiece are reduced significantly, and the mechanical properties obtained by artificial aging are better than those obtained by natural aging.

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作者简介：张子祺（2000-），男，本科生 E-mail：504472235@qq.com 通信作者：李国平（1971-），男，博士，教授 E-mail：me_ligp@ujn.edu.cn

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