Fracture behavior of 7075-T6 aluminum alloy under electromagnetic forming and traditional stamping

• Autorzy: Yan Ziqin , Xiao Ang , Cui Xiaohui , Lin Yuhong , Yu Hailiang , Chen Baoguo

Identyfikatory

DOI

10.1007/s43452-021-00285-5

• Języki publikacji: EN

Abstrakty

EN

7075-T6 aluminum alloy is a high strength aluminum alloy that is widely used in automotive and aerospace manufacturing. Nevertheless, its plastic deformation ability is poor at room temperature. Electromagnetic forming (EMF) is a method dedicated to forming materials at high speed using magnetic force, which can significantly improve their plastic deformation ability. However, it is difficult to understand the dynamic processes of high-speed forming. Herein, finite element models of EMF and quasi-static stamping were developed using the ANSYS and ABAQUS software. The Johnson–Cook constitutive model was used to describe the stress–strain behavior of the material, while the Johnson–Cook damage model was used to describe the fracture behavior of the material and the distribution of the fracture strain. The sheet exhibited a small temperature rise before fracture, which has little effect on the material fracture strain by EMF. After fracture, the temperature increased sharply. Scanning electron microscopy images revealed that the material underwent a melting phenomenon at the fracture location. Numerical simulation results demonstrated that the fracture energy of EMF was three times that of traditional stamping, and the high strain rate is the main factor affecting the fracture strain of the material.

Słowa kluczowe

EN

electromagnetic forming; damage; numerical simulation; strain rate

PL

uszkodzenie; symulacja numeryczna; odkształcenie

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2021
• Tom: Vol. 21, no. 3
• Strony: 821--835
• Opis fizyczny: Bibliogr. 17 poz., rys., wykr.

Twórcy

autor

Yan Ziqin

• College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China

autor

Xiao Ang

• College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China

autor

Cui Xiaohui

• College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
• Light Alloy Research Institute, Central South University, Changsha 410083, China
• State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, People’s Republic of China

autor

Lin Yuhong

• Light Alloy Research Institute, Central South University, Changsha 410083, China

autor

Yu Hailiang

• College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
• Light Alloy Research Institute, Central South University, Changsha 410083, China
• State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, People’s Republic of China

autor

Chen Baoguo

• COMAC Shanghai Aircraft Manufacturing Co., Ltd, Shanghai 201324, People’s Republic of China

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)