Influence of the shielding gas on the properties of VP-GMA braze-welded joints in zinc coated steel sheets

The article presents the results of research on overlay brazing and weldbrazing of hot-dip galvanized sheets carried out in order to determine the influence of shielding gas composition and electrode-negative (EN) ratio on the process and properties of overlay brazes and weldbrazed joints. The parameters analysed included joint geometry, wettability, zinc coating oxidation, spatter and porosity.