Transactions of Materials and Heat Treatment

Title：Free bending of thin aluminum alloy sheet by electromagnetic force

Authors： Long Anlin Wang Wenping Wan Min Chen Xiaowei Xiong Weiren

Unit： Beihang University

KeyWords： aluminum alloy sheet electromagnetic bend-forming electromagnetic coil optimal sheet width midpoint deflection

ClassificationCode：TG391

year,vol(issue):pagenumber：2015,40(9):48-52

Abstract：

The electromagnetic free bend-forming of different aluminum alloy sheet was studied by the electromagnetic paratactic rectangular spiral coil. The relationship between the midpoint deflection of the samples with the sheet width or the discharging voltage of capacitors was analyzed. The results show that when the ratio of the blank width and the rectangular coil length (equivalent width) is 0.55, the blank midpoint deflection reaches the maximum, and the sheet mental deformation is the largest with the highest efficiency of the electromagnetic forming equipment. So the optimal sheet width is obtained in electromagnetic bend-forming by the rectangular spiral coil. By adopting the optimal sheet width, a number of tests on the different aluminum alloy sheet were carried out under different discharging voltages. It is found that the relationship between the midpoint deflection of the blank and the discharging voltage of capacitors is satisfied with the quadratic function.

Funds：

国家重点基础研究发展计划（“973”计划）（2011CB12800，2011CB012804）

龙安林（1990-），男，博士研究生；通讯作者：王文平（1971-），女，博士，副教授

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