论文信息 - A Study of Thermal Behaviour during Submerged Arc Welding

A Study of Thermal Behaviour during Submerged Arc Welding

The present study reports on thermal behavior during submerged arc welding considering an oval shaped heat source. The welding process is represented by the energy conservation equation where the moving electrode is incorporated considering an oval shaped Gaussian heat source. The governing equation is solved based on the Green function solution and subsequently considered the effect of heat in the weld pool and convection after welding. The prediction agrees well with the experiments and it was found that an oval shape is a better approximation for the heat source.

[1] Hyungsuck Cho,et al. An analytical solution to predict the transient temperature distribution in fillet arc welds , 1997 .

[2] S. Chattopadhyaya,et al. Prediction of Weld Bead Parameters, Transient Temperature Distribution & HAZ Width of Submerged Arc Welded Structural Steel Plates , 2012 .

[3] Naoyuki Suzuki,et al. Analytical solutions for transient temperature of semi-infinite body subjected to 3-D moving heat sources , 1999 .

[4] M. Gu,et al. Steady-State Formulation for Stress and Distortion of Welds , 1994 .

[5] Jerzy Winczek,et al. Analytical solution to transient temperature field in a half-infinite body caused by moving volumetric heat source , 2010 .

[6] A. Sedmak,et al. Numerical analysis of constraint effect on ductile tearing in strength mismatched welded CCT specimens using micromechanical approach , 2011 .

[7] Peilin Li,et al. Hybrid heat source model designing and parameter prediction on tandem submerged arc welding , 2012 .

[8] Jerzy Winczek,et al. New approach to modeling of temperature field in surfaced steel elements , 2011 .

[9] J. Goldak,et al. A new finite element model for welding heat sources , 1984 .

[10] J. Goldak,et al. Computational Welding Mechanics , 2005 .

[11] Thomas W. Eagar,et al. Temperature fields produced by traveling distributed heat sources , 1983 .