Transactions of Materials and Heat Treatment

Title：Study on forming efficiency of electromagnetic flanging for double-sheet

Authors： Qiu Li Liu Hongchi Jiang Chenfei Luo Baoni Li Zhi

Unit： China Three Gorges University Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station

KeyWords： electromagnetic flanging round hole flanging double-sheet forming efficiency plastic strain energy

ClassificationCode：TM154

year,vol(issue):pagenumber：2022,47(5):96-102

Abstract：

For the problem of low forming efficiency for electromagnetic flanging technology, the electromagnetic flanging technology of double-sheet was proposed. Then, on the basis of clarifying the principle for electromagnetic flanging of double-sheet, two simulation models of the traditional single-sheet and double-sheet were constructed, and the five aspects of driving coil current waveform, magnetic flux density, electromagnetic force, plastic strain energy and forming efficiency were compared and analyzed. The results show that under the same discharge energy, the plastic strain energy of the double-sheet simulation model is 52.28% higher than that of the traditional single-sheet, and at the same flanging angle, the discharge energy required by the double-sheet simulation model is only 60.60% of the two discharge energies for the traditional single-sheet simulation model, so the energy utilization rate is increased by 39.40%. Obviously, the electromagnetic flanging technology of double-sheet can use a single drive coil to realize the flanging of two sheets at the same time, effectively solves the problem of low forming efficiency for electromagnetic flanging and promotes the wide application of electromagnetic flanging technology in the industry field.

Funds：

国家自然科学基金资助项目（51877122、51507092）

作者简介：邱立（1984 -），男，博士，副教授，E-mail：Doctor_QiuL@163.com；通信作者：李智（1996 -），男，硕士研究生，E-mail：1109910734@qq.com

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