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Numerical simulation of alloy composition in dissimilar laser welding

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journal contribution
posted on 2015-07-10, 12:06 authored by Mohammadreza Nekouie Esfahani, Jeremy CouplandJeremy Coupland, Sundar Marimuthu
A three-dimensional multiphase computational fluid dynamic model was developed to investigate the meltpool fluid dynamics, dilution and alloy composition in laser welding of low carbon steel and stainless steel. Using the developed model, independent predictions on weld properties are made for a range of laser parameters, and in all cases the results of the numerical model were found to be in close agreement with experimental observations. The investigation revealed that above certain specific point energy the materials within the melt pool are predominantly homogenous. A minimum meltpool convention is required in dissimilar laser welding to obtain weld bead properties suitable for industrial applications. The present model provides a simple yet effective method to predicting the weld bead alloying concentration and homogeneity encompassing wide range of materials.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Journal of Materials Processing Technology

Volume

224

Pages

135 - 142

Citation

NEKOUIE ESFAHANI, M.R, COUPLAND, J. and MARIMUTHA, S., 2015. Numerical simulation of alloy composition in dissimilar laser welding. Journal of Materials Processing Technology, 224, pp. 135-142

Publisher

© Elsevier

Version

  • AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2015

Notes

This paper was accepted for publication in the journal Journal of Materials Processing Technology and the definitive published version is available at http://dx.doi.org/10.1016/j.jmatprotec.2015.05.005.

ISSN

0924-0136

Language

  • en