Transactions of Materials and Heat Treatment

Title：Experimental study on electromagnetic forming of aluminum alloy sheet with small convex angle based on elastic medium

Authors： Chen Hao Zhu Weidong Jiang Peng Zhang Jianbo Jin Hong Zhou Lin Wei Wei Lu Xin

Unit： Beijing Research Institute of Mechanical and Electrical Technology Ltd. China Society for Technology of Plasticity Chinese Mechanical Engineering Society

KeyWords： electromagnetic forming 6014 aluminum alloy sheets convex angle elastic medium

ClassificationCode：TG391

year,vol(issue):pagenumber：2019,44(3):181-187

Abstract：

Aiming at V-shaped convex angle forming of 6014 aluminium alloy sheet, the experimental study on electromagnetic forming process with driving plate based on elastic medium was carried out. The effects of magnetic pulse discharge voltage, hardness of elastic medium, vacuum degree of cavity and shape and size of elastic medium on forming ability of small-sized convex angle of aluminium alloy sheet were investigated.The experimental results show that the higher the discharge voltage of magnetic pulse, the smaller the hardness of elastic medium and the higher the vacuum degree of the cavity, the higher the height of the convex angle. By optimizing the shape, size and die structure of the elastic medium, the ideal V-shaped convex angle forming effect was obtained under the discharge voltage of 3.5 kV, polyurethane hardness of A90 and cavity vacuum of the concave die of 3.2 Pa, and the convex angle height was 2.92 mm and the minimum fillet was R1 mm, which met the forming accuracy requirement of small fillet.

Funds：

国家国际科技合作专项项目（2015DFR71080）

陈浩（1994-），男，硕士研究生，E-mail：1197029766@qq.com；通讯作者：朱卫东（1968-），男，硕士，硕士生导师，研究员，E-mail：903521354@qq.com

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