METHOD FOR WELDING BLADES to the drum axial compressor friction welding and related devices

摘要

1. A method of attaching the blades (18, 20, 22) to the rotor (14) an axial turbomachine (2) by friction welding, comprising the steps of: a) placing the rotor (14) for providing the surface (38) for coupling one of the blades ; b) begin moving blade frictional motion (18, 20, 22) relative to the surface (38) coupling to the blade (18, 20, 22), preferably in the median plane of contact between the blade and said surface to achieve the welding temperature, wherein the rotor (14 ) is held in a fixed position in the plane of movement of the friction l patki (18, 20, 22); and c) immobilize blade (18, 20, 22) and prokovyvayut blade (18, 20, 22) to the rotor (14), wherein the movement blade (18, 20, 22) in step (b) is orbitalnym.2. A method according to claim 1, characterized in that the rotor is a drum (14) of the compressor, preferably comprising a hollow body (16) having a generally circular symmetry about the rotor axis and defining an internal cavity with a first opening in the front end of the drum and a second hole in tortse.3 back. A method according to claim 1, characterized in that step (a) includes positioning the support (51) in the rotor (14) on the inner surface opposite to the surface (38) interface designed for the blade, for fixing said surface relative to conjugation forging pressure acting on the blade (18, 20, 22) in step (c) .4. A method according to claim 1, characterized in that the bearing arrangement (51) in the drum (14) comprises a drum insert (14) of the core (52), wherein the core is the basis for the support (51) opposite the inner surface of the drum, said core is preferably positioned along at IU