HORIZONTAL POSITION ELECTROGAS WELDING METHOD

PROBLEM TO BE SOLVED: To provide a welding method capable of obtaining an excellent bead appearance and a sound weld zone and having an excellent efficiency by using a metallic powder flux cored wire and providing a welding execution condition is a horizontal position electrogas welding executed with one pass and one run. SOLUTION: In the horizontal position electrogas welding method wherein an upper base material 1 and a lower base material 2 are formed into a single level groove, a solid backing 4 and a sliding copper strap 3 are respectively abutted to the back surface side and the surface side of the groove, a welding wire 6 through a flattened chip 5 is inserted into the space formed with the groove surface and the solid backing and the sliding copper strap 3, the end part of the welding wire 6 is swung in the thickness direction of the plate, the groove is welded with one pass and one run using a welding carriage running under automatic control by detecting the welding current with the running carriage, the flux cored wire filled, by wire wt. ratio, 10-30% flux containing, by wt., >=95% metallic powder into the steel sheath is used.