| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing or repairing a monobloc bladed rotor disc which includes a stages of forming a welded joint surface on a protruding projection of a disc. SOLUTION: This method includes the stage of forming, on the protruding projection 4 belonging to the disc 1 and extending from an upstream end 4a to a downstream end 4b along a protruding projection chord 6, the welded joint surface 8 intended to allow a subsequent stage of fitting a blade 2 by linear friction welding onto the protruding projection 4 of the disc 1. According to the invention, the stage of forming the welded joint surface 8 is carried out in such a way that it includes at least two butt-jointed plane portions 8a, 8b, 8c, arranged in sequence along the protruding projection chord 6. The method is applicable to a turbo shaft engine rotor. COPYRIGHT: (C)2005,JPO&NCIPI |
