Back to results
US 5,813,118 AGranted
Method for repairing an air cooled turbine engine airfoil
AssigneeGeneral Electric Company
InventorsLawrence J. Roedl, Joseph H. Bowden, Jr.
Life of this patent
Estimating the term…
Abstract
A method for repairing a turbine engine airfoil having an environmental resistant coating on a outer wall surface includes selecting and masking a discrete portion of the airfoil outer wall surface to protect the coating on the selected discrete portion, thereby providing a masked outer wall surface and an unmasked outer wall surface. The coating is removed from the unmasked outer wall surface, the maskant is removed, and the airfoil is repaired.
Claims8
In a method for repairing a turbine engine airfoil including an outer wall surface having thereon an environmental resistant coating, the steps of:
- selecting a discrete portion of the outer wall surface to be masked;
- applying an outer wall maskant to the coating on the selected discrete portion to cover the coating on the selected portion, the maskant being sufficient to avoid removal of the coating on the selected portion during a subsequent coating removal processing, thereby providing a masked outer wall surface and an unmasked outer wall surface;
- removing the coating from the unmasked outer wall surface;
- removing the maskant from the outer wall surface;
- and then, repairing the airfoil.
2 more elements
Dependencies are inferred from the claim text.