Underwater laser welding by 4kW CW YAG laser

Y. Yamashita, Toshihiro Kawano, K. Mann

研究成果: Article

20 引用 (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, ration 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.

元の言語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
発行部数10
出版物ステータスPublished - 2001 10
外部発表Yes

Fingerprint

Underwater welding
laser welding
Continuous wave lasers
Laser beam welding
nuclear power plants
YAG lasers
Repair
Nuclear power plants
rations
fitness
grooves
inspection
Japan
engineering
Lasers
requirements
evaluation
defects
Inspection
lasers

ASJC Scopus subject areas

  • Nuclear Energy and Engineering

これを引用

Underwater laser welding by 4kW CW YAG laser. / Yamashita, Y.; Kawano, Toshihiro; Mann, K.

:: Journal of Nuclear Science and Technology, 巻 38, 番号 10, 10.2001, p. 891-895.

研究成果: Article

Yamashita, Y, Kawano, T & Mann, K 2001, 'Underwater laser welding by 4kW CW YAG laser', Journal of Nuclear Science and Technology, 巻. 38, 番号 10, pp. 891-895.
Yamashita, Y. ; Kawano, Toshihiro ; Mann, K. / Underwater laser welding by 4kW CW YAG laser. :: Journal of Nuclear Science and Technology. 2001 ; 巻 38, 番号 10. pp. 891-895.
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