METHOD FOR WELDING CASTING MEMBER

摘要

PROBLEM TO BE SOLVED: To provide a method for welding a casting member with which the removal of stress with a peening at repair-welding time can surely be performed without entrusting experiences of a skilled worker. SOLUTION: This welding method is performed by providing with; a welding step S1 for welding the welding part 1a in the casting member 1 composed of a cast iron or a cast steel; a peening step S4 for peening the welded part 1a; and strain measuring steps S2, S5 for measuring the strain near the welded part developed with the welding. The strain near the welded part during welding and in the peening is continuously measured and the peening is started before the strain measured just after welding exceeds a prescribed maximum value and the peening is continued until the strain is lowered to not more than the minimum value of the prescribed value. COPYRIGHT: (C)2005,JPO&NCIPI