Repair of Aircraft Fan Blade
AssigneeChromalloy Gas Turbine Corporation
InventorBenny L. Blumanstock
Life of this patent
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Abstract
Systems and methods for repairing hollow fan blades. The hollow fan blade has a concave portion and a convex portion secured together by a joint. An interior cavity of the hollow fan blade is charged with a vacuum. The method includes removing material from a damaged portion of the hollow fan blade and welding the damaged portion such that a temperature of the joint does not exceed a distortion temperature.
Claims20
A method of repairing a hollow fan blade, the hollow fan blade including a first portion and a second portion secured together by a joint, an interior cavity of the hollow fan blade being charged with a vacuum, the method including:
- removing material from a damaged portion of a leading edge of the hollow fan blade;
- and
- welding the damaged portion such that a temperature of the joint does not exceed a distortion temperature.
A system for repairing a leading edge of a hollow fan blade, the hollow fan blade including a first portion and a second portion secured together by a joint, an interior cavity of the hollow fan blade being charged with a vacuum, the system comprising:
- a purge box having a mount for securing the hollow fan blade;
- and
- a temperature sensor configured for monitoring of a temperature of the hollow fan blade during welding.
A method of repairing a hollow fan blade, the hollow fan blade including a concave portion and a convex portion secured together by a joint, an interior cavity of the hollow fan blade being charged with a vacuum, the method comprising:
- removing material from a damaged portion of the hollow fan blade;
- and
- welding the damaged portion such that a temperature of the joint does not exceed a distortion temperature.
Dependencies are inferred from the claim text.