Heliarc welding -- outdated, or still practiced today?

helar welding was first used because of its ability to make very high quality root pass welds without backing Rings today you can complete the weld with a helar torch quickly and economically this etched cross-section shows perfect fusion and uniform penetration whatever quality you need in piping helar welding can help you speed production and lower costs backing rings are eliminated no flux is used so there can be no flux inclusion and cleaning is not necessary with heliarc welding WS with complete penetration and smooth Underside Contour can be made every time quickly and economically this easier method gives you better Wells better piping [Music]