CLAD WELDING METHOD AND CLAD WELDING STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a clad welding method which can prevent occurrence of a fusion failure while suppressing a welding metal from being diluted by a relatively simple method to clad a surface of a base material over a wide range with the welding metal.SOLUTION: The clad welding method includes moving a welding torch in a welding direction with weaving the welding torch while delivering the welding metal to a melt pool that is caused by generating arc between the welding torch and the base material, to form a weld bead; and forming following weld beads in turn in a region adjacent to the formed weld bead so that one leading end of a preceding weld bead and the other following end of a subsequent weld bead are overlapped, wherein a deeply melted part 12a is locally formed in a region where one end 10a of the preceding weld bead 10 and the other end 20b of the subsequent weld bead 20 are overlapped.