直接通電電磁成形による板材成形

概要

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A new method of metal sheet forming useing magnetic pressure is proposed. The magnetic pressure is produced by a huge impactive electric current which passes through the electrode contact and the metal sheet. The current is generated by the transient phenomenon of discharge on the condenser bank. The effects of the working conditions are experimentally investigated for the currents and deformations of the sheet. The results are as follows : (1) The profiles of the current wave is damping sine, the current reaches a maximum of 450 KA at charged energy 6 kJ. (2) As the distance between the evectrode contact and the sheet increases, the deformation of the sheet decreases and the wrap at the sheet edge increases. (3) The deformation and the wrap increase with a decrease in the width of the sheet.
社団法人日本機械学会の論文
1989-06-25