Numerical Simulation of SAW Heat Source in the External Longitudinal Magnetic Field in 16Mn Steel

Abstract:

The finite element analysis on temperature field and stress field during submerged-arc welding (SAW) was carried out by means of assembly language of FORTRAN on the base of ABAQUS. A finite element model was established to study the effects on weld bead formation by using longitudinal magnetic field of low-frequency and different process parameters loaded with moving heat source. A practical SAW experiment was conducted to verify the results of the numerical simulation. It was shown that a molten pool with a wider weld face and a lower penetration could be obtained by the control of longitudinal magnetic field of low-frequency. In addition, the fusion line after this treatment was smoother than with conventional SAW. The results of practical SAW experiment were consistent with those of the numerical simulation. It was confirmed that the longitudinal magnetic field of low-frequency could contribute in diminishing the dilution rate and improving the performance of surfacing layers.

• Periodical: Materials Science Forum (Volume 762)
• Pages: 584-589
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.762.584
• Online since: July 2013
• Authors: Yun Long Chang, Lin Lu, Xiao Long Liu, Bo Young Lee
• Keywords: ABAQUS, Finite Element, Magnetic Field, SAW, Temperature Field

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