Study of the process of electromagnetic forming with consideration for the effect of magnetic field penetration through the workpiece

This paper presents the results of a study of the process of Electromagnetic forming of sheet blanks. The study included the calculation of the process by the engineering procedure, computer simulation of the process using LS-DYNA, and experimental working out the operation. The aim of this work is to determine the permissible areas of application of the engineering procedure of calculation of processes of magnetic pulse forming of thin-walled components as well as a possibility for joint use of the engineering procedure and the LS-DYNA to develop processes of Electromagnetic forming. As a result of research it was found that the engineering procedure makes it possible to calculate the processes with sufficient accuracy when the thickness of the workpiece is greater than the value of the depth of pulsed magnetic field penetration into the workpiece material, and the results of calculations can be used as initial data for more accurate simulation of the process with the LS-DYNA.