Laser Solutions (한국레이저가공학회지)

Korean Society of Laser Processing (한국레이저가공학회)
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Finite element analysis for prediction of weld bead shape of Nd:YAG pulse laser welding for AISI 304 stainless steel plate

AISI 304 스테인리스 강판의 Nd:YAG 펄스 레이저 용접비드 형상예측을 위한 유한요소해석

  • Cho Haeyong (Dept. of Precision Mechanical Engineering, Chungbuk National University) ;
  • Kim Kwanwoo (Dept. of Precision Mechanical Engineering, Chungbuk National University) ;
  • Hong Jinuk (Dept. of Precision Mechanical Engineering, Chungbuk National University) ;
  • Lee Jaehoon (Laser Application Group, Korea Institute of Machinery & Materials) ;
  • Suh Jeong (Laser Application Group, Korea Institute of Machinery & Materials)
  • 조해용 (충북대학교 기계공학부) ;
  • 김관우 (충북대학교 기계공학부) ;
  • 홍진욱 (충북대학교 기계공학부) ;
  • 이제훈 (한국기계연구원 레이저응용시스템그룹) ;
  • 서정 (한국기계연구원 레이저응용시스템그룹)
  • Published : 2005.04.01
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Abstract

Pulse laser welding of AISI 304 stainless steel plate was simulated to optimize welding conditions by using commercial finite element code MARC. Due to geometric symmetry, a half model of AISI 304 stainless steel plate was considered. for the heat transfer analysis, user subroutines were applied to boundary condition. The material properties such as conductivity, specific heat, and mass density were given as a function of temperature and the latent heat associated with a given temperature range was considered. A moving heat source was designed on the basis of experimental data. As a result, Nd:YAG laser welding for AISI 304 stainless steel was successfully simulated and it should be useful to determine optimal welding condition.

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