Repair of integrally bladed rotors

摘要

A method is provided for repairing a damaged rotor blade (22) on an integrally bladed rotor (20) by removing a damaged portion of a damaged blade leaving a blade stub (24) extending outwardly from the disk and performing a linear friction welding operation to attach a replacement blade segment to the blade stub (24). The rotor may be disposed operation using a linear friction welding apparatus (10). The method includes disposing a support collar (29) about the blade stub (24) -and securing the support collar (29) to the linear friction welding apparatus (10) prior to a commencement of the bonding operation. A lower surface of the support collar (29) is contoured to mate with a portion of an outer circumference surface of the rotor disk.