Journal of Advanced Marine Engineering and Technology

  • 제30권6호
  • /
  • Pages.740-745
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  • 2006
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  • 2234-7925(pISSN)
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  • 2234-8352(eISSN)
한국마린엔지니어링학회 (The Korean Society of Marine Engineering)
권호 표지

리튬이온전지의 전해액 주입구 볼에 대한 Nd:YAG 레이저 용접성

The Weldability of Aluminum Ball in Electrolyte Injection Hole by Nd:YAG Laser

  • 김종도 (한국해양대학교 기관시스템공학부) ;
  • 유승조 (한국해양대학교 대학원) ;
  • 김장수 (한국해양대학교 대학원)
  • 발행 : 2006.09.30
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초록

This study suggested the occurrence source of weld-defects and its solution methods in a welding of Electrolyte injection hole by pulsed Nd:YAG laser. In experiment, the ramp down was used in order that solidification crack was removed. Furthermore. shrinkage stress and heat input were reduced by changing of weld trajectory and defocused distance. As a results of a experiment, a sound weld bead shape and crack-free weld bead can be obtained. In conclusion this show that the welding stability is greatly affected by modulation of laser pulse shape for the same laser energy and welding parameters.

키워드

참고문헌

  1. 김종도, 유승조, 김장수, '리튬이온전지의 밀봉용접을 위한 펄스 Nd:YAG레이저 용접조건의 최적화', 한국마린엔지니어링학회지 제30권, 제5호, pp. 623-628, 2006
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