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1 Journal of Applied Mathematics and Computational Mechanics

1 2021

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Numerical simulation of a temperature field during multi-beads surface welding

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Koňár R. , Mičian M. , Málek M. , Šutka J. , Gucwa M. , Winczek J.

tom Vol. 20, nr 1

49--59

The calculation results of the temperature field during multi-beads GMAW (Gas Metal Arc Welding) cladding of the S355 steel plate are presented in the paper. Numerical simulations were performed using the SysweldR program. Two of Goldak’s heat source models were chosen for calculating the temperature field for each weld bead. The original article achievement is, by selecting the right heat source model and heat loading of the finite elements, obtaining an irregular shape of the fusion zone. This irregular shape of the fusion zone is very complicated to obtain using other commercial programs for numerical welding simulation. The calculation results were verified by the dimensions (critical temperatures) of the heat affected zones (HAZ) determined in the experiment, obtaining a satisfactory agreement.