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| Presentation | 2018-10-05 14:30 Comparison of magnetic pulse welding method of Al/Cu sheets using 4, 8 and 16-turn flat coils Tomokatsu Aizawa (Tokyo Metropolitan College)  EMD2018-38 Link to ES Tech. Rep. Archives: EMD2018-38 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Magnetic pulse welding of sheets is performed by flowing a large discharge current rapidly from a capacitor bank to a flat coil. When using the multi-turn coils to reduce the discharge current, it is necessary to select the bank capacity. In this report, inorder to make the rise time of the current as equal as possible, the bank capacity at the time of discharge is selected as 24, 6 and 1.5μF for the 4, 8 and 16-turn coils respectively. After two or four same capacitors are charged in parallel they are discharged in series to the 8 or 16-turn coil to reduce the bank capacity. Overlapping Al/Cu sheets with a gap are placed on these three coils of approximately the same appearance and can be electromagnetically welded. Based on the experimental results using the 4 and 8-turn coils, we compare three kinds of welding methods. When the discharge energy required for welding is about 0.7 kJ, the peak values of the discharge currents flowing through the 4, 8 and 16-turn coils are about 41, 21 and 11 kA, respectively, and when the number of turns is doubled, it decreases to about 1/2 . | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Electrical connection / Lap welding / Al and Cu / Magnetic pulse welding / Flat coil / Paralle-charge / Series-discharge / | |
| Reference Info. | IEICE Tech. Rep., vol. 118, no. 232, EMD2018-38, pp. 7-12, Oct. 2018. | |
| Paper # | EMD2018-38 | |
| Date of Issue | 2018-09-28 (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 | EMD2018-38 Link to ES Tech. Rep. Archives: EMD2018-38 |
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| Conference Information | |
| Committee | EMD |
| Conference Date | 2018-10-05 - 2018-10-05 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Fuji Electric (TOKYO: Osaki East Tower 23F) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Paper Information | |
| Registration To | EMD |
| Conference Code | 2018-10-EMD |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Comparison of magnetic pulse welding method of Al/Cu sheets using 4, 8 and 16-turn flat coils |
| Sub Title (in English) | |
| Keyword(1) | Electrical connection |
| Keyword(2) | Lap welding |
| Keyword(3) | Al and Cu |
| Keyword(4) | Magnetic pulse welding |
| Keyword(5) | Flat coil |
| Keyword(6) | Paralle-charge |
| Keyword(7) | Series-discharge |
| 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 | 2018-10-05 14:30:00 |
| Presentation Time | 25 minutes |
| Registration for | EMD |
| Paper # | EMD2018-38 |
| Volume (vol) | vol.118 |
| Number (no) | no.232 |
| Page | pp.7-12 |
| #Pages | 6 |
| Date of Issue | 2018-09-28 (EMD) |
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