An Analytical Solution for Transient Temperature Distribution in Fillet Arc Welding Including the Effect of Molten Metal

용착 금속을 고려한 필릿 용접에서 온도 분포 예측을 위한 해석적 모델

  • 정선국 (거제전문대학, 기계과) ;
  • 조형석 (한국과학기술원 기계공학과)
  • Published : 1995.09.01

Abstract

This paper presents an analytical solution to predict the transient temperature distribution in fillet arc welding including the effect of molten metal. The solution is obtained by solving a transient three-dimensional heat conduction equation with convection boundary conditions on the surfaces of a plate, and mapping the infinite plate onto the fillet weld geometry with energy equation. The electric heat input on the fillet weld and on the infinite plate is assumed to have a combination of two bivariate Gaussian distribution. To check the validity of the solution. FCA welding experiments were performed under various welding conditions. The actual isotherms of the weldment cross-sections at various distances from the arc start point are compared with those of simulation result.

Keywords

References

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