Transactions of Materials and Heat Treatment

Title：Extrusion simulation and performance study on profiles for aluminum alloy energy-absorbing beams

Authors： Song Xichao1 Liu Shoukui2 3 Zhao Zhonghua2 3 Pan Xueyong4 Sun Xuemei4 5 Chen Liang4 6

Unit： 1.Linyi Industrial and Information Technology Development Promotion Center 2.Shandong Haomen Aluminum Industry Co. Ltd. 3.Shandong Province Key Laboratory of High Strength and Tough Aluminum Alloy Profile and Technology 4.School of Mechanical & Vehicle Engineering Linyi University 5.Shandong Ouyahao New Energy Technology Co. Ltd. 6.National Key Laboratory of High-end Equipment and Advanced Technology for Metal Forming Shandong University

KeyWords： aluminum alloy profile extrusion process parameters aging process meterial flow uniformity extrusion force

ClassificationCode：TG146.21

year,vol(issue):pagenumber：2025,50(7):96-105

Abstract：

For energy-absorbing beam profiles, its extrusion forming process was systematically analyzed and discussed by the combination of numerical simulation and experimental verification. Then, based on the Box-Behnken experimental design method, the extrusion process parameters were optimized, and the experimental verification and performance analysis were conducted on the optimization results. The results show that the extrusion speed has a decisive influence on the material flow uniformity and extrusion force during the forming process of thin-walled aluminum alloy profiles. The optimal process condition is the billet temperature of 487.16 ℃, the die temperature of 525 ℃, the extrusion barrel temperature of 417.35 ℃, and the extrusion speed of 0.5 mm·s-1. Based on the above process parameters, the extrusion experiments are conducted, the surface roughness of the obtained profile is good and no obvious defects are obtained. The performance analysis shows that the performance of profile under the aging process of 150 ℃×12 h is the best，which meets the actual production requirements.

Funds：

山东省技术创新引导计划 (中央引导地方科技发展资金)（YDZX2024108ZKT）；山东省科技型中小企业创新能力提升工程项目（2023TSGC0459ZKT）

作者简介：宋夕超（1986-），男，硕士，高级工程师 E-mail：563003689@qq.com 通信作者：孙雪梅（1984-），女，博士，教授 E-mail：sunxuemei@lyu.edu.cn

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