Romanian Journal of Information Technology and Automatic Control / Vol. 33, No. 1, 2023

Reduced order model for evaluating the temperature gradients of the surfacing weld process

Bogdan Marian VERDETE, Cristina PUPĂZĂ, Tudor George ALEXANDRU

Abstract:

Surfacing weld represents the deposition of a filler material on the surfaces or edges of a base metal. The objective of the process is to improve the mechanical characteristics of metallic structures that are subjected to cyclic loads. Heat transfer occurs at the interface between the welded beads and the base metal. Thus, the structural performances of the final product are limited. In this regard, the evaluation of the temperature distribution by means of simulation tools can provide essential information to the designers of such structures. The present paper proposes a new approach for the estimation of the thermal gradients that occur during the welding process. In the first stage, a black box system is developed with the support of experimental data. A simulation approach that is based on the Finite Element Method is proposed for the transient analysis of the heat transfer. The conductance and capacitance of the model are defined based on the parameters of the “Black box” system.

Keywords:
Welding, Heat Transfer, Black Box, Simulation

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CITE THIS PAPER AS:
Bogdan Marian VERDETE, Cristina PUPĂZĂ, Tudor George ALEXANDRU, "Reduced order model for evaluating the temperature gradients of the surfacing weld process", Romanian Journal of Information Technology and Automatic Control, ISSN 1220-1758, vol. 33(1), pp. 7-20, 2023. https://doi.org/10.33436/v33i1y202301