Impact of mechanical properties of structural steel by three transfer modes in gas metal arc welding

Abstract

In manufacturing, great advantages such as high resistance and reliability have been acquired through permanent bonding processes such as welding. Electric arc welding under the name of gas metal arc welding is one of the most widely used welding processes due to its high productivity index and the quality of its weld seams. The application parameterization allows three modes of metal transfer to be developed which depend on voltage and amperage. The microstructure and mechanical properties of the base material are modified with the modes of metal transfer, due to the heat input that must be made to be able to join them, without having numerically quantified the level of affectation. In this work, the application of transfer modes on structural steel was developed following the normative models that govern technology and industry. Experimental procedures of microscopy and mechanical tests were applied to determine correlations between the mechanical properties and the parameters established during the application, the microstructures were reviewed in contrast to the results obtained.