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In-bore laser welding tool for actively cooled divertor cassettes in JT-60SA
https://repo.qst.go.jp/records/85374
https://repo.qst.go.jp/records/853745131620c-3ce8-41c1-b840-183f9665339e
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-03-17 | |||||
| タイトル | ||||||
| タイトル | In-bore laser welding tool for actively cooled divertor cassettes in JT-60SA | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Takao, Hayashi
× Takao, Hayashi× Manabu, Takechi× Go, Matsunaga× Akihiko, Isayama× Takao, Hayashi× Manabu, Takechi× Go, Matsunaga× Akihiko, Isayama |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In-bore remote pipe welding tool has been upgraded for divertor cassettes of JT-60SA, where all plasma-facing components are actively cooled. Because the cooling pipes are surrounded by divertor cassette frame, pipe welding should be done from the inside of the pipe. The tool was equipped with a mirror to reflect the laser radially. Circumferential welding was performed by rotating the tool while injecting the laser. If fumes and spatters adhere to the laser reflecting mirror during welding, the laser will not reach the groove and the welding will not be stable. Upgrading the welding tool has realized to perform welding tests with a well-protected mirror and stable laser power. A misalignment between pipes at the groove is unavoidable in actual divertor cassettes of JT-60SA. The results of butt welding of short pipes indicated that it was possible not only in the gap but also in the combined state with angular and axial misalignment, covering a larger range than required by the actual cassette. It is notable that welding was possible even with an angular misalignment of 0.9◦ and an axial misalignment of 0.3 mm, where the maximum gap between pipes was about 0.9 mm. | |||||
| 書誌情報 |
Fusion Engineering and Design 巻 2022, 号 177, p. 113040, 発行日 2022-03 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0920-3796 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.fusengdes.2022.113040 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1016/j.fusengdes.2022.113040 | |||||
