Method of repairing an airfoil

摘要

A method for repairing an airfoil 46 includes the steps of: (a) determining repair regions 32 of the airfoil 46 that are likely to be damaged during a period of operation; (b) creating a stress profile for the airfoil that considers dynamic, steady-state, and residual stresses; (c) selecting a replacement section patch line 42 using the stress profile and the determination of those regions likely to be damaged during operation; (d) providing an airfoil replacement section 44 with a predetermined shape having a bond surface that substantially mates with the patch line 42; (e) removing a portion of the airfoil up to the patch line; (f) bonding the airfoil replacement section 44 to the airfoil along the patch line; and (g) shaping the patched airfoil.