Underwater laser welding by 4 kW CW YAG Laser

Yoshihiro Yamashita*, Toru Kawano, Kurt Mann

*この研究の対応する著者

研究成果: Article査読

24 被引用数 (Scopus)

抄録

In May 2000 JSME issued Rules on fitness-for-service for nuclear power plants, which define allowable flaw sizes at operating nuclear power plants, and based on evaluation against these rules, rational repairs were to be realized. According to results, rational in-situ repairs were urgently needed on aged nuclear power plants, and since underwater laser repairs met utilities requirements, the authors developed underwater YAG laser repair technology. Hitachi installed the equipment at JAPEIC (Japan Power Engineering and Inspection Corporation) in 1998 and implemented 0.3MPa underwater YAG laser welding in both downward and horizontal direction repairs, even in a U groove work piece. Metallurgical studies are ongoing.

本文言語English
ページ(範囲)891-895
ページ数5
ジャーナルJournal of Nuclear Science and Technology
38
10
DOI
出版ステータスPublished - 2001 10月
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 原子力エネルギーおよび原子力工学

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