Parametric study on numerical simulation of the electromagnetic forming of DP780 steel workpiece with aluminium driver sheet

10th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes

Park, Hyeonil^1,2 ; Lee, Jinwoo^1 ; Kim, Se-Jong^1 ; Lee, Youngseon^1 ; Kim, Daeyong^1,3

Korea Institute of Materials Science, Changwondaero 797, Gyeongnam, Changwon

642-831, Korea, Republic of^1

Department of Mechanical Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Busan

609-735, Korea, Republic of^2

Korea University of Science and Technology, 217 Gajeongro, Daejeon

305-350, Korea, Republic of^3

关键词: Advanced high strength steel;    Deformation behavior;    Electromagnetic forming;    Electromagnetic solvers;    Flat spiral coil;    Mechanical simulations;    Numerical parameters;    Protrusion shape;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/734/3/032085/pdf
DOI  :  10.1088/1742-6596/734/3/032085

来源: IOP

【 摘 要 】

The purpose of this study is to investigate the influences of numerical parameters on the electromagnetic forming (EMF) simulation. The 3-dimensional coupled electromagnetic- mechanical simulations were conducted to predict the deformation behavior of the advanced high strength steel (AHSS) sheet receiving support in EMF with aluminum driver sheet. Dual phase (DP) 780 steel workpiece was formed into a hemi elliptical protrusion shape with aluminum alloy AA1050 driver sheet using a flat spiral coil actuator and open cavity die. The deformed shape of the DP780 workpiece and the computation time with respect to element size, N cycle number and time step of electromagnetic (EM) solver were analysed.