Proceedings of the 7th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2024)

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Study on pre-stretching - contact heating - artificial aging process of 7075 aluminum alloy

Authors
Xiaolei Zhang1, Xiao Liang2, Chongchen Xiang1, Hanlin Ding1, Zijian Wang1, *
1Shagang School of Iron and Steel, Soochow University, Suzhou, 215021, China
2Jiangxi Hot Stamping Automotive Component Co., Ltd., Jiujiang, 332499, China
*Corresponding author. Email: wangzijian@suda.edu.cn
Corresponding Author
Zijian Wang
Available Online 7 December 2024.
DOI
10.2991/978-94-6463-581-2_27How to use a DOI?
Keywords
7075 Aluminum Alloy; Contact Heating; Pre-stretching; Artificial Aging
Abstract

Due to the low elongation of aluminum alloys at room temperature, which often leads to cracking during forming, hot stamping is commonly used to improve the formability of aluminum alloys. However, in traditional hot stamping processes, the solid solution treatment time is excessively long and cannot match the subsequent forming steps. Therefore, this study adopts a contact heating method that can shorten the solid solution time to within 30 seconds and enhance the material properties to a certain extent. To further enhance the strength of aluminum alloys, this paper proposes a pre-stretching - contact heating - artificial aging process, and investigates the effects of deformation and contact heating processes on the mechanical properties and microstructure of aluminum alloys. The results show that the aluminum alloy treated with contact heating can achieve a strength of 568.46 MPa after being held at 120℃ for 18 hours, exceeding the performance of the T6 state. Moreover, as the deformation increases, the strength of the aluminum alloy continues to improve, reaching a maximum of 591.42 MPa after 24 hours of aging treatment at a deformation of 10%.

Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 7th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2024)
Series
Atlantis Highlights in Material Sciences and Technology
Publication Date
7 December 2024
ISBN
978-94-6463-581-2
ISSN
2590-3217
DOI
10.2991/978-94-6463-581-2_27How to use a DOI?
Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Xiaolei Zhang
AU  - Xiao Liang
AU  - Chongchen Xiang
AU  - Hanlin Ding
AU  - Zijian Wang
PY  - 2024
DA  - 2024/12/07
TI  - Study on pre-stretching - contact heating - artificial aging process of 7075 aluminum alloy
BT  - Proceedings of the 7th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2024)
PB  - Atlantis Press
SP  - 221
EP  - 229
SN  - 2590-3217
UR  - https://doi.org/10.2991/978-94-6463-581-2_27
DO  - 10.2991/978-94-6463-581-2_27
ID  - Zhang2024
ER  -