Metal-active gas arc (MAG) welding of butt welds on sheets with metal-powder-cored wire electrodes

摘要

The use of metal-powder-cored wire electrodes in conjunction with two and three component gases (with helium portion) leads to an improvement in the weld shape conditions when welding single-side butt welds on sheets in the thickness range from 1 to 3 mm. The best torch manipulation is 30 to 40° to the vertical. Shielding gases containing helium allow at the same time an increase in welding speed without affecting the weld quality.