Vibration-assisted electromagnetic forming with alternating electromagnetic force for V-bending

被引:4
作者
Feng, Wenjing [1 ,2 ]
Zhang, Chenwei [1 ,2 ]
Chen, Yao [3 ]
Liu, Zhuobin [1 ,2 ]
Huang, Lantao [1 ,2 ]
Han, Xiaotao [3 ]
机构
[1] Xiamen Univ, Dept Instrumental & Elect Engn, Xiamen 361000, Peoples R China
[2] Xiamen Univ, Shenzhen Res Inst, Shenzhen 518000, Peoples R China
[3] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China
基金
中国国家自然科学基金;
关键词
Electromagnetic forming; Vibration; assisted forming; Alternating electromagnetic force; Rebound; MECHANISM; SHEET;
D O I
10.1016/j.jmapro.2024.07.055
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A novel vibration-assisted electromagnetic forming method that combines electromagnetic forming and electromagnetic vibration is proposed in this paper to improve the performance of electromagnetic forming. During the forming process, the vibration is generated by the interaction of the background magnetic field and the alternating current injected into the workpiece. The generation and injection processes are simple and controllable. To validate the feasibility of this method, a vibration-assisted system is designed and constructed to carry out V-bending experiments. The results show that vibration assistance significantly improves the forming performance of aluminum alloy workpieces. Specifically, the filling rate and forming depth of the workpiece at lower-voltage forming is increased by 13.5 % and 11.2 %, respectively. The performance is better than that of high-voltage forming without vibration. This indicates that vibration assistance contributes to reducing the requirements for discharge energy equipment. Moreover, at higher-voltage forming, vibration assistance optimizes the workpiece contour and reduces rebound, resulting in increases of up to 25.2 % and 19.6 % in filling rate and forming depth, respectively. Additionally, reasonable adjustment of vibration voltage can further optimize the forming performance. This confirms that vibration assistance contributes to optimizing electromagnetic forming for higher-quality metal forming.
引用
收藏
页码:155 / 163
页数:9
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