Formation of a Seam Using Automatic Unsupported Argon Arc Welding with a Non-Consumable Electrode with Flux Pastes

Abstract

It was demonstrated that applying the flux paste on the back side of the welded joint during welding low-alloyed steels provides control over the sizes of the root and its defect-free formation. It was found that the back bead width is vital to unsupported root formation of thin-walled articles for the considered welding modes.