WELDING METHOD FOR GROOVE FOR EXISTING OVERLAY-WELDED PART

摘要

PROBLEM TO BE SOLVED: To apply the welding of a narrow groove to the welding of a new member to the existing overlay-welded. part. SOLUTION: By performing new overlay welding on the whole surface of the member 1 having the existing overlay-welled part 3 on the surface of a base material 2, the newly overlay-welded part 6 is formed. A groove surface is formed on the surface 6a of the newly overlay-welded. of part 6. By forming a groove 5 by a sound groove surface the newly overlay-welded part 6 and the groove surface of a new member 4, groove welding is performed to the groove 5.