Formability and mechanism of ultra-thin titanium foil under the elevated temperature and high strain rate in electromagnetic forming

Zelin Wu; Pengxin Dong; Yifan Huang; Yao Chen; Runze Liu; Quanliang Cao; Liang Li; Hao Wang; Xiaotao Han; Qiuliang Wang

Journal of Materials Research and Technology (Jul 2024)

Formability and mechanism of ultra-thin titanium foil under the elevated temperature and high strain rate in electromagnetic forming

Zelin Wu,
Pengxin Dong,
Yifan Huang,
Yao Chen,
Runze Liu,
Quanliang Cao,
Liang Li,
Hao Wang,
Xiaotao Han,
Qiuliang Wang

Affiliations

Zelin Wu: State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, 518060, China; Interdisciplinary Center of High Magnetic Field Physics of Shenzhen University, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
Pengxin Dong: State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China; Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, 430074, China
Yifan Huang: State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China; Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, 430074, China
Yao Chen: State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China; Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, 430074, China
Runze Liu: State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China; Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, 430074, China
Quanliang Cao: State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China; Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, 430074, China
Liang Li: State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China; Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, 430074, China
Hao Wang: State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, 518060, China; Corresponding author. State Key Laboratory of Frequency Heterogeneous Integration, College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, 518060, China.
Xiaotao Han: State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China; Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, 430074, China; Corresponding author. National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, 430074, China.
Qiuliang Wang: Interdisciplinary Center of High Magnetic Field Physics of Shenzhen University, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China; Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China

Journal volume & issue: Vol. 31
pp. 2435 – 2449

Abstract

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Electromagnetic forming (EMF) is a high-speed forming process with significant potential for manufacturing bipolar plates. However, titanium's low conductivity requires the use of a driver sheet in traditional EMF, limiting its formability improvement. This study proposed a novel electromagnetic forming method with independent loading of the magnetic field and current (EMF-ILMFC), enabling separate application of electromagnetic force and Joule heating. The dynamic deformation behavior of ultra-thin titanium was investigated using three different loading methods: quasi-static (QS), electromagnetic bulging with driver sheets (EMB-DS), and electromagnetic bulging with the new method (EMB-ILMFC). The study revealed that the forming limit under EMB-ILMFC was significantly higher than under EMB-DS and QS, with a maximum improvement of 139.1%. Numerical simulations and experimental analyses were conducted to elucidate the thermal effects on formability during dynamic deformation. The results indicate that thermal effects reduce flow stress, extend the duration of inertia and high strain rates, and thereby improve the formability of titanium.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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