Transactions of Materials and Heat Treatment

Title：Extrusion process optimization on 6063 aluminum alloy profile based on three-dimensional hot processing map

Authors： Guo Shuangshuang1 2 Huang Zhiheng3 Cheng Shaokun3 Liu Wenwen3

Unit： 1. Taiyuan Heavy Machinery Group Co. Ltd. Taiyuan 030024 China 2. Taizhong (Tianjin) Binhai Heavy Machinery Co. Ltd. Tianjin 300457 China 3. College of Mechanical Engineering Taiyuan University of Technology Taiyuan 030024 China

KeyWords： 6063 aluminum alloy extrusion profiles Arrhenius model constitutive equation three-dimensional hot processing map

ClassificationCode：TG146.2

year,vol(issue):pagenumber：2025,50(6):120-128

Abstract：

In order to obtain the optimized extrusion process parameters of 6063 aluminum alloy and realize the uniformity of forming quality and high forming efficiency, at the same time, considering that the temperature in the extrusion process had significant influence on the yield of extruded products, the isothermal hot compression test of 6063 aluminum alloy was carried out on dynamic simulation compression tester Gleeble-3800 with a temperature interval of 30 ℃, and the true stress-true strain curves under the conditions that the temperature of 450-570 ℃ and strain the rate of 1-20 s-1 were obtained. Then, the constitutive equation based on the Arrhenius model was established, the three-dimensional hot processing map was established, and the process optimization was conducted by combining the Prasad theory. The results show that the correlation coefficient r2 between the predicted and test values of the constitutive equation considering strain is 0.97935, and the average absolute relative error AARE is 4.669%. The three-dimensional hot processing map analysis shows that the suitable hot processing conditions for 6063 aluminum alloy are high temperature and low strain rate, and low temperature and high strain rate, and the reasonable extrusion temperature range is 480-530 ℃. The research results show that the established constitutive equation can provide guidance for the evaluation of force and energy parameters in the design stage of extrusion equipment, and the three-dimensional hot processing map can provide reference for the optimization of extrusion process parameters of aluminum alloy profiles.

Funds：

国家重点研发计划（2024YFB3714301）；山西省基础研究计划联合资助项目（太重）产业发展类重点项目（TZLH2023-0818006）；国家自然科学基金青年科学基金资助项目（52005361）；中央引导地方科技发展资金项目(YDZJSX2022A022)；中国博士后科学基金特别资助项目(2023T160474)

作者简介：郭爽爽（1984-），男，硕士，高级工程师，E-mail：1115329758@qq.com；通信作者：刘文文（1990-），男，博士，副教授，E-mail：liuwenwen@tyut.edu.cn

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