Computational simulation of laser fillet and tailored blank welding

W. A. Sudnik; V. A. Erofeev

doi:10.1117/12.660457

9 June 2006 Computational simulation of laser fillet and tailored blank welding

W. A. Sudnik, V. A. Erofeev

Proceedings Volume 6053, International Conference on Lasers, Applications, and Technologies 2005: High-Power Lasers and Applications; 605315 (2006) https://doi.org/10.1117/12.660457
Event: International Conference on Lasers, Applications, and Technologies 2005, 2005, St. Petersburg, Russian Federation

Abstract

The seam formation in laser beam welding of fillet weld is considered. The aim of modelling is to predict the position, shape and size of the weld cross section dependent on the applied process parameters and the material properties of the workpiece. The numerical simulation is based on solving the equation of conservation of energy by the finite difference method within a continuous simulation domain. The zones of the simulation domain are different in respect of the thermodynamical material properties and the velocities of matter motion. The position of the inner and outer interfaces between the zones results from the numerical solution of the equilibrium equation of the interface forces. The mass balance is set up inclusive of the filler wire, the thermal expansion of the base and filler metal and the gap width between the jointed parts. The effect of the wire feed rate on the formation of laser beam welded butt with the displacement of edges inclusive tailored blanks and fillet welds in steel and aluminium alloys is verified by experimental results.

Citation Download Citation

W. A. Sudnik and V. A. Erofeev "Computational simulation of laser fillet and tailored blank welding", Proc. SPIE 6053, International Conference on Lasers, Applications, and Technologies 2005: High-Power Lasers and Applications, 605315 (9 June 2006); https://doi.org/10.1117/12.660457

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