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자기장을 이용한 레이저 마이크로 접합 공정

Laser Micro-Welding Process in which Magnetic Fields are Applied

  • 이우람 (NID 융합기술 대학원 나노 IT 융합프로그램) ;
  • 이철구 (서울과학기술대학교 기계공학과) ;
  • 김주한 (서울과학기술대학교 기계공학과)
  • Lee, Woo-Ram (Dept. of Nano IT Fusion Program, Seoul National University of Science, Graduate School of NID Fusion Technology) ;
  • Lee, Chul-Ku (Dept. of Mechanical Engineering, Seoul National University of Science) ;
  • Kim, Joo-Han (Dept. of Mechanical Engineering, Seoul National University of Science)
  • 투고 : 2011.06.29
  • 심사 : 2011.10.04
  • 발행 : 2011.12.01

초록

본 연구는 레이저를 이용한 스테인리스강의 용접성 평가에 대한 연구이다. 사용된 금속인 스테인리스 스틸은 녹 및 열적변형이 우수하여 다양한 적용 분야를 가지고 있다. 본 연구는 50 W 레이저 열원에 자기장을 적용하여 스테인리스 스틸에 기계적 성질을 향상 시키는데 목적을 두고 있다. 이에 따른 기계적 성질을 분석하기 위하여 수치적 해석, 인장강도, 형상 및 미세조직, 경도 시험 등을 수행하였다. 결과적으로 수치적 해석을 통한 금속 용융점에서의 속도 증가, 인장강도 약 16 MPa 상승, 용융부에 섞임, 경도 약 7 Hv 상승으로 기계적 성질이 향상 되었다.

키워드

레이저;레이저접합;자기장;스테인리스 스틸;용융지

과제정보

연구 과제 주관 기관 : 한국연구재단

참고문헌

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피인용 문헌

  1. The effect of magnetic fields for laser welding process using carbon steel vol.14, pp.11, 2013, https://doi.org/10.1007/s12541-013-0260-2