Title: Influence of welding conditions on resistance flash welds

Authors: Željko Bilić; Nedjeljko Mišina; Lovro Kuščer; Janez Diaci; Ivan Polajnar

Addresses: Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Split, Croatia ' Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Split, Croatia ' Faculty of Mechanical Engineering, University of Ljubljana, Ljubljana, Slovenia ' Faculty of Mechanical Engineering, University of Ljubljana, Ljubljana, Slovenia ' Welding Institute, Ljubljana, Slovenia

Abstract: The contribution gives an insight into resistance flash welding with emphasis on process dynamics. For the experiments ribbed mild steel concrete reinforcement bars were used with a range of welding parameters used in a normal welding praxis. The welded bars were tested for tensile strength and the results were used to develop a regression model. The model was designed to predict weld piece strength according to input welding parameters. The input welding parameters were: welding force, welding current and welding time.

Keywords: welding parameters; displacement measurement; tensile strength; weld microstructure; resistance flash welds; ribbed steel bars; concrete reinforcement; regression modelling; welding force; welding current; welding time.

DOI: 10.1504/IJMMP.2013.059478

International Journal of Microstructure and Materials Properties, 2013 Vol.8 No.6, pp.425 - 435

Published online: 23 Feb 2014 *

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