Journal of Welding and Joining

  • 제30권1호
  • /
  • Pages.51-58
  • /
  • 2012
  • /
  • 2466-2232(pISSN)
  • /
  • 2466-2100(eISSN)
대한용접접합학회 (The Korean Welding and Joining Society)
권호 표지
DOI QR코드

DOI QR Code

핵융합 발전로 냉각수 연결모듈의 원격 유지보수를 위한 레이저 용접-절단 공정개발

Development of Remote Laser Welding-Cutting Process for Maintenance of Hydraulic Connection Module on ITER Project

  • 김용 (고등기술연구원 로봇생산기술센터) ;
  • 박기영 (고등기술연구원 로봇생산기술센터) ;
  • 이경돈 (고등기술연구원 로봇생산기술센터)
  • 투고 : 2012.01.25
  • 심사 : 2012.02.28
  • 발행 : 2012.02.29
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

To assess hydraulic connections between sub-components of the International Thermonuclear Experimental Reactor (ITER) diagnostic port plug, the laser welding and ablation cutting process were investigated in order to be applied the remote handling maintenance. In this study, laser ablation cutting, which vaporizes a small amount of solid material directly into gas by focusing a laser beam of high density energy, is adopted in order to overcome the limitation of the normal laser cutting technology that the head should be placed as close to the work piece as possible to blow out melt metal at a distance. Complete cutting of a work piece is obtained by repetitive multi-passes of the laser beam. The welding and cutting process were tested on the sample work pieces and finally on a prototype of a hydraulic connection module for remote handling. The results showed that this process can be a promising candidate for hydraulic connections by remote handling.

키워드

참고문헌

  1. R. Haange : Remote handling maintenance of ITER, Nuclear Fusion 39 (1999). 2043-2050 https://doi.org/10.1088/0029-5515/39/11Y/351
  2. C. I. Walker et al. : ITER diagnostics: maintenance and commissioning in the hot cell test bed, Fusion Engineering and Design 74 (2005), 685-690 https://doi.org/10.1016/j.fusengdes.2005.06.243
  3. L. P. Jones et al. : Assembly of ITER blanket module to vacumm vessel experimental investigations, Fusion Engineering and Design 58 (2001), 567-571 https://doi.org/10.1016/S0920-3796(01)00497-5
  4. S .I. Park et al. : A conceptual design of the ITER upper port plug structure and its cooling channels, Fusion Engineering and Design 83 (2008), 1594-1599 https://doi.org/10.1016/j.fusengdes.2008.07.012
  5. S. I. Park et al. : Laser welding and ablation cutting process for hydraulic connections by remote handling in the ITER diagnostic port plug, Fusion Engineering and Design 85 (2010), 190-196 https://doi.org/10.1016/j.fusengdes.2009.11.003
  6. Y. Kim et al. : Study on the process parameters for laser welding of coaxial circular pipe inner flange, Journal of KSLP, 12-3 (2009), 14-17 (in Korean)
  7. Y. H Han : Laser beam processing technique, Journal of KWS 8-3 (1990), 13-23 (in Korean)

피인용 문헌

  1. High-Temperature Structural Analysis of a Small-Scale PHE Prototype under the Test Condition of a Small-Scale Gas Loop vol.2012, pp.1687-6083, 2012, https://doi.org/10.1155/2012/312080