THERMAL SCIENCE

International Scientific Journal

EXPERIMENTAL AND ANALYTICAL EVALUATION OF PREHEATING TEMPERATURE DURING MULTIPASS REPAIR WELDING

ABSTRACT
Experimental measurement and analytical calculation of preheating, i. e. interpass temperature during multi-pass repair welding has been presented. Analytical calculation is based on heat transfer analysis, whereas measurements have been performed by thermovision camera. Repair welding was performed on crane wheels in the Steelworks Smederevo. Comparison of results indicated that analytical calculation is good enough as the first approximation, but it needs further elaboration, e. g. taking into account the radiation component of heat dissipation and/or temperature dependence of material thermomechanical properties.
KEYWORDS
PAPER SUBMITTED: 2016-03-24
PAPER REVISED: 2016-03-26
PAPER ACCEPTED: 2016-03-29
PUBLISHED ONLINE: 2016-04-09
DOI REFERENCE: https://doi.org/10.2298/TSCI160324077S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2017, VOLUME 21, ISSUE 2, PAGES [1003 - 1009]
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© 2017 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence