| Presentation | 2017-02-21 Study on estimation of spot welding diameter using non-contact acoustic inspection method Yutaka Nakagawa, Tsuneyoshi Sugimoto, Mikito Tanaka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Currently, welding methods called spot welding are used for welding of cars and train bodies. Spot welding has characteristics such as low distortion at the welded position and fast welding speed. The strength of the welded part of spot welding is determined by the weld diameter. Destructive test such as tensile test is the main method for inspecting weld diameter. However, the destructive test has a problem that cannot be only a sampling test. Therefore, we are studying inspection methods using sound wave and laser Doppler vibrometer. The inspectioned target is excited with acoustic waves and the weld diameter is estimated from the phase difference of the vibration around the welded position. The advantage of this measurement method is that can measure non-destructively and non-contactly. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Spot welding / Diameter of weld / Non-contact acoustic inspection method / laser Doppler vibrometer |
| Paper # | US2016-126 |
| Date of Issue | 2017-02-14 (US) |
| Conference Information | |
| Committee | US |
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| Conference Date | 2017/2/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Nobuyuki Endo(Kanagawa Univ.) |
| Vice Chair | Yoichi Itoh(Nihon Univ.) / Minoru Kurosawa(Tokyo Inst. of Tech.) |
| Secretary | Yoichi Itoh(Univ. of Electro-Comm.) / Minoru Kurosawa(Univ. of Toyama) |
| Assistant | Takeshi Morita(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Ultrasonics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on estimation of spot welding diameter using non-contact acoustic inspection method |
| Sub Title (in English) | |
| Keyword(1) | Spot welding |
| Keyword(2) | Diameter of weld |
| Keyword(3) | Non-contact acoustic inspection method |
| Keyword(4) | laser Doppler vibrometer |
| 1st Author's Name | Yutaka Nakagawa |
| 1st Author's Affiliation | Toin University of Yokohama(Toin Univ.of Yokohama) |
| 2nd Author's Name | Tsuneyoshi Sugimoto |
| 2nd Author's Affiliation | Toin University of Yokohama(Toin Univ.of Yokohama) |
| 3rd Author's Name | Mikito Tanaka |
| 3rd Author's Affiliation | TECHNO SYSTEMS,Inc.(TECHNO SYSTEMS,Inc.) |
| Date | 2017-02-21 |
| Paper # | US2016-126 |
| Volume (vol) | vol.116 |
| Number (no) | US-465 |
| Page | pp.pp.31-36(US), |
| #Pages | 6 |
| Date of Issue | 2017-02-14 (US) |