Abstract
Understanding the key differences between the High Performance Gas Metal Arc Welding – HP GMAW – variants and the conventional process variants and their conceiving and development scenario is paramount for their further evolution and customization for distinct heavy thickness joint welds or cladding applications, as found in the Offshore, Shipbuilding and Oil and Gas sectors. This paper aims to delineate the characteristics of the conventional GMAW process under high current conditions and thereby contrast the differences from the High-Performance variants (GMAW-HP) processes, emphasizing the group of processes identified by the German Welding Society - Deutscher Verband für Schweißen (DVS) as 'Modified Spray Arc'. Based on a literature review and supporting experimental work, the present paper explains and demonstrates the operational functionality of the GMAW variant called DynaFlex-Arc, highlighting the distinct features within this high-performance group of processes.
Keywords: high penetration MIG/MAG welding; high power GMAW; spray streaming; inductance control.
Referência:
SILVA, R. H. G.; SCHWEDERSKY, M. B.; MARQUES, C.; SCHAEFFER, C. M.; GALEAZZI, D.; ZANELLA, G. C.; Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference. Rhodes, Greece, June 16–21, 2024