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| Presentation | 2019-11-15 13:05 Magnetic pulse welding method: Discharge current commutates to collision part of Al/Cu sheets Tomokatsu Aizawa (Tokyo Metropolitan College)  EMD2019-39 Link to ES Tech. Rep. Archives: EMD2019-39 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this report, magnetic pulse welding is started by rapidly flowing a damped oscillating discharge current from a capacitor bank to an insulated 5-turn flat coil. Overlapped Al/Cu sheets having a gap are fixed on the coil, and each sheet connects to both ends of the coil. When the current flows through the coil, a high density magnetic flux is applied to the Al sheet near the coil. The resulting eddy currents are induced in the Al sheet and electromagnetic forces act on the sheet. The Al sheet collides to the Cu sheet at high speed and both sheets will be welded. The discharge current is set to be nearly peak when both sheets collide. Both sheets also act as high-speed mechanical switch contacts and so the current flowing through the coil commutates to the short-circuit including the collision part of sheets. The coil current does not oscillate but gradually damps which is good for the discharge device. The results of Al/Cu sheets welding by this method have been reported. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Magnetic pulse welding / Mechanical switch / Sheet metal / Capacitor bank / Discharge current / Commutation / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 294, EMD2019-39, pp. 1-4, Nov. 2019. | |
| Paper # | EMD2019-39 | |
| Date of Issue | 2019-11-08 (EMD) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | EMD2019-39 Link to ES Tech. Rep. Archives: EMD2019-39 |
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| Conference Information | |
| Committee | EMD |
| Conference Date | 2019-11-15 - 2019-11-15 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The University of Electro-Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | International Session IS-EMD2019 |
| Paper Information | |
| Registration To | EMD |
| Conference Code | 2019-11-EMD |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Magnetic pulse welding method: Discharge current commutates to collision part of Al/Cu sheets |
| Sub Title (in English) | |
| Keyword(1) | Magnetic pulse welding |
| Keyword(2) | Mechanical switch |
| Keyword(3) | Sheet metal |
| Keyword(4) | Capacitor bank |
| Keyword(5) | Discharge current |
| Keyword(6) | Commutation |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tomokatsu Aizawa |
| 1st Author's Affiliation | Tokyo Metropolitan College of Technology (Tokyo Metropolitan College) |
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| Speaker | Author-1 |
| Date Time | 2019-11-15 13:05:00 |
| Presentation Time | 25 minutes |
| Registration for | EMD |
| Paper # | EMD2019-39 |
| Volume (vol) | vol.119 |
| Number (no) | no.294 |
| Page | pp.1-4 |
| #Pages | 4 |
| Date of Issue | 2019-11-08 (EMD) |
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