MICROSTRUCTURE ANALYSIS OF WELDING RESULTS RESISTANCE BUTT WELDING SPRING STEEL WIRE JIS G 3521

Abstract

This research analyses the microstructure changes in JIS G 3521 spring steel wire welded using resistance butt welding. The results show significant changes in the weld zone and heat-affected zone (HAZ), including the formation of new phases and changes in grain size. These changes are correlated with mechanical properties such as hardness and tensile strength. This study aims to understand the influence of welding parameters on microstructure and mechanical properties, as well as contribute to the development of optimal welding techniques.