DOI QR코드

DOI QR Code

Finite Element Analysis for Prediction of Bead Shape of Nd:YAG Laser Fillet Welding

Nd:YAG 레이저 필렛 용접의 비드형상 예측에 관한 유한요소해석

  • Published : 2007.08.01

Abstract

Nd:YAG pulse laser fillet welding of stainless steel plate was simulated to find welding condition by using commercial finite element code MARC. Full model of AISI 304 stainless steel plate was considered and user subroutines were applied to boundary condition for the heat transfer. Material properties such as conductivity, specific heat, mass density and latent heat were given as a function of temperature. As results, Three dimensional heat source model for pulse laser beam conditions of fillet welding has been designed by the comparison between the finite element analysis results and experimental data on AISI 304 stainless steel plate. Nd:YAG laser welding for AISI 304 stainless steel was successfully simulated and it should be useful to determine optimal welding condition.

References

  1. Kim, D. H., Kim, S. S. and Kim, C. J., 1993, 'A Study on the Pure Al Weldability Using a Pulsed Nd:YAG Laser,' Journal of KWS, Vol. 11, No.1, pp. 52-61
  2. Lee, D. H. and Kim, H. J., 1997, 'A Study on the TEM00 Mode of the Pulsed Nd:YAG Laser with a Single Elliptical Cavity,' Pusan Nat'l Univ., J. Research Inst. Ind. Technol., Vol. 53, pp. 159-163
  3. Hong, J. H., Kim, B. G., Park, K. R. and Lee, D. H., 1999, 'A Study on the Operating Characteristics of Nd:YAG Laser,' Pusan Nat'l Univ., J. Research Inst. Ind. Technol., Vol. 56, pp. 145-149
  4. Heo, I. S., Kim, B. C., Kim, T. H., Kim, J. S. and Lee, H. Y., 2001, 'A Study on the Welding Behavior of A3003 Aluminium Alloy Thin Sheet by Nd:YAG Laser Beam,' The Journal of Korean Society of Laser Processing, Vol. 4, No.1, pp. 29-38
  5. Lee, T. G. and Kim, J. W., 2000, 'A Study on the Three-Dimensional Heat Flow Analysis in the Laser Welding for Deep Penetration,' Journal of KWS, Vol. 18, No.3, pp. 76-82
  6. Nam, G. J., Kim, K. W., Hong, J. U., Lee, J. H., Sub, J. and Cho, H. Y., 2006, 'Finite Element Analysis of Nd:YAG Laser Welding for AlSI 304 Stainless Steel Plate,' Journal of KSME(A), Vol. 30, No.4, pp. 428-434 https://doi.org/10.3795/KSME-A.2006.30.4.428
  7. Cho, H. Y., Nam, G. J. and Kim, K. W., 2005, 'Finite Element Analysis of Nd:YAG Laser Welding of Micro Heat Exchanger,' Journal of Industrial Science and Technology Institute, Vol. 19, No.2, pp. 59-64
  8. Cho. H. Y., Kim, K. W. and Nam, G. J., 2006, 'Finite Element Analysis for Prediction of Bead Shape of Nd:YAG Laser Butt Welding,' Journal of KSME (submitted) https://doi.org/10.5916/jkosme.2008.32.1.137