Presentation 2016-07-15
Magnetic Pulse Seam Welding of Al/Cu Sheets using 6 -Turn Flat Coil
Tomokatsu Aizawa,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) The effective welding of Aluminum (Al)/Copper (Cu) is one of the technical problems to be related to Li-ion batteries in electric vehicles. In this study Al/Cu sheets are welded by magnetic pulse welding. The sheets are overlapped with a gap between them and fixed on a 6-turn flat coil. When a discharge current from a capacitor bank passes through the coil, a magnetic flux is suddenly generated around the coil. Eddy currents are induced in the overlapped sheets and electromagnetic force acts on the Al sheet nearer the coil. This sheet is collided to the Cu sheet and welded without fusion and high quality Al/Cu welds are obtained. The bank energy required for this welding was less than 0.6 kJ and the peak discharge current was 25 kA.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Electromagnetic welding / Magnetic pulse welding / Seam welding / Al/Cu joining / Discharge current / Flat coil / Li-ion battery
Paper # EMCJ2016-49,EMD2016-22
Date of Issue 2016-07-08 (EMCJ, EMD)

Conference Information
Committee EMCJ / EMD
Conference Date 2016/7/15(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English) Discharge, EMC
Chair Hideaki Sone(Tohoku Univ.) / Yoshiteru Abe(NTT)
Vice Chair Osami Wada(Kyoto Univ.)
Secretary Osami Wada(AIST) / (Hitachi Automotive Systems)
Assistant Yoshiki Kayano(Univ. of Electro-Comm.) / Yusaku Katsube(Hitachi) / Chie Sasaki(Panasonic) / Yoshiki Kayano(Univ. of Electro-Comm.) / Yuichi Hayashi(Tohoku Gakuin Univ.)

Paper Information
Registration To Technical Committee on Electromagnetic Compatibility / Technical Committee on Electromechanical Devices
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Magnetic Pulse Seam Welding of Al/Cu Sheets using 6 -Turn Flat Coil
Sub Title (in English)
Keyword(1) Electromagnetic welding
Keyword(2) Magnetic pulse welding
Keyword(3) Seam welding
Keyword(4) Al/Cu joining
Keyword(5) Discharge current
Keyword(6) Flat coil
Keyword(7) Li-ion battery
1st Author's Name Tomokatsu Aizawa
1st Author's Affiliation Tokyo Metropolitan College of Technology(Tokyo Metropolitan College)
Date 2016-07-15
Paper # EMCJ2016-49,EMD2016-22
Volume (vol) vol.116
Number (no) EMCJ-135,EMD-136
Page pp.pp.31-36(EMCJ), pp.31-36(EMD),
#Pages 6
Date of Issue 2016-07-08 (EMCJ, EMD)