Title: Evaluation of MMA and MAG arc welding process data

Authors: Krzysztof Luksa, Zbigniew Rymarski

Addresses: Welding Department, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland. ' Institute of Electronics, Silesian University of Technology, ul. Akademicka 16, Gliwice 44-100, Poland

Abstract: The microprocessor-controlled system for real-time collection and display of welding parameters was designed, implemented and tested. The system records up to 4 digital or analog signals collected from welding process and display their run on the LCD display. The aim of the research was to examine the possibility of detecting welding imperfections by recording the instant values of welding parameters. Tests of the device performed during manual metal arc welding and metal active gas welding revealed that the occurrence of some welding imperfections is followed by changes of the welding parameters. In this case, they can be detected by the analysis of the instant values of the welding parameters. Experiments show that monitoring of gas metal arc welding and a simple statistical approach to welding parameters can help in evaluation of weld quality. [Received 15 April 2006; Accepted 8 February 2007]

Keywords: weld quality; manual metal arc welding; MMA welding; metal active gas welding; MAG welding; monitoring; materials science; welding parameters; welding imperfections.

DOI: 10.1504/IJCMSSE.2007.017921

International Journal of Computational Materials Science and Surface Engineering, 2007 Vol.1 No.6, pp.663 - 676

Published online: 23 Apr 2008 *

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