Transactions of Materials and Heat Treatment

Title：Research on energy utilization rate for dual tube fittings electromagnetic flanging based on T-coil

Authors： Zhang Jinrong1 Qiu Li1 2 Li Mengyao1 Liu Hongchi3 Wang Chenxin1 4

Unit： 1. College of Electrical and New Energy China Three Gorges University 2. Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station 3. State Grid Hubei Electric Power Co. Ltd. Jingmen Power Supply Company 4. State Grid Hubei Electric Power Co. Ltd. Dangyang County Power Supply Company

KeyWords： electromagnetic flanging electromagnetic force T-coil plastic strain energy axial coil energy utilization rate

ClassificationCode：TM154

year,vol(issue):pagenumber：2025,50(2):65-74

Abstract：

For the problems of low energy utilization rate and weak axial electromagnetic force in the traditional coil tube fittings electromagnetic flanging process, a dual tube fittings electromagnetic flanging method based on T-coil was proposed, and three comparison models of electromagnetic flanging based on traditional coil tube fittings, convex coil tube fittings and T-coil dual tube fittings were established by using software Comsol. Then, the magnetic flux density distribution, electromagnetic force distribution, plastic strain energy and energy utilization rate in the flanging area of the tube fittings were analyzed, and the improved energy utilization rate of T-coil under the same flanging angle was further studied. The results show that under the same discharge voltage, the plastic strain energy of T-coil dual tube fittings electromagnetic flanging is the highest, and the energy utilization rate is greatly improved. Compared with traditional coil and convex coil tube fittings electromagnetic flanging, the energy utilization rate is improved by 69.75% and 31.89%, respectively. When all tube fittings of three models achieve the best flanging effect (flanging angle of 90°),the flanging model of T-coil dual tube fittings requires the least discharge energy, only 1.39 kJ, and compared with the traditional coil and convex coil tube fittings electromagnetic flanging, the energy utilization rate is increased by 49.82% and 37.67%, respectively. The T-coil dual tube fittings electromagnetic flanging technology solves the problem of low energy utilization rate, providing new research ideas for the industrial applications of electromagnetic flanging.

Funds：

国家自然科学基金资助项目(51877122,51507092)

作者简介：张锦荣（1996-），男，硕士研究生,E-mail：1833634574@qq.com;通信作者：邱立（1984-），男，博士，副教授,E-mail：qiuli@ctgu.edu.cn

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