METHOD FOR REPAIR OR RESTORATION OF A TURBO MACHINE DISK AND A REPAIRED OR RESTORED DISC OF A GAS TURBINE ENGINE

摘要

1. A method of repairing or restoring a disk of a gas turbine engine containing at least one radially external tab with an axial hole for receiving an axial fastener comprising a head and a shaft with a partial screw thread, wherein the fastener passes into the axial hole so so that the head rests on the surface of the foot by tightening the nut on the screw part of the shaft on the opposite side of the foot, said fastening element forming means for radially holding the foot rigidly connected d with the corresponding part on the rim, characterized in that the coredrilling (123B; 223V; 323B) in the foot around the drilled hole (123A; 223A; 323A) corresponding to the wear zone is carried out and a replacement fastener (100) containing the rim (111A) is placed ), resting on the surface of the aforementioned countersink and having a diameter greater than the diameter of the head (111). ! 2. The method according to claim 1, in which the thickness of the rim is at most equal to the depth of the core. ! 3. The method according to claim 1, including increasing the diameter of the drilled hole (123A; 223A; 323A) by processing to remove cracked material, while the replacement fastener (100) has a rod with a screw part (120) with a diameter corresponding to a new hole. ! 4. The method according to claim 3, in accordance with which the increase in diameter is approximately 25%. ! 5. The method according to claim 1, in accordance with which the nut is replaced with a nut with a base expanded in comparison with the original nut. ! 6. The method according to claim 1, in accordance with which the countersink (123B) perform a U-shape on the outside of the legs of the external mount. ! 7. The method according to claim 1, in accordance with �