engleski

Stud Arc Welding – Changes of the main welding parameters due to welding on unclean surface

The main purpose of welding parameters monitoring systems is to monitor the welding voltage and current in real time (on-line). This relies on experiences that useful information about welding process quality can be gained by analysis of welding voltage and current dynamics. However, some of the systems for welding process monitoring include, besides of welding current and voltage gauges, welding velocity and wire feed speed gauges (MAIG/MAG welding process) as well as temperature and gas flow gauges [1]. Systems for monitoring of main welding parameters are used for on-line monitoring of welding processes in manufacturing quality control, as a support in development of new filler metals, shielding gasses, and welding equipment, optimization of welding technology, adjusting of parameters and welding equipment characteristics as well as adaptive control of the welding process [2]. It is important to discover the welding parameters irregularities in real welding conditions so they can be eliminated in order to achieve acceptable weld quality. In this paper, the applicability of methods for stability evaluation usually used in MAG welding process [2, 3] for application on stud arc welding is analyzed.

Stud Arc Welding; On-line monitoring; Process stability

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