Method for removing metal cladding from airfoil substrate
AssigneeGeneral Electric Company
InventorsLarry Dean Cline, Gerald Alexander Pauley
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Abstract
A method for removing metal cladding adhered to an airfoil, such as a turbine blade, wherein the airfoil comprises a substrate and wherein at least a portion of the cladding is adhered to at least one surface of the substrate of the airfoil. In this method the cladding is treated with a chemical etchant of the metal that the cladding is made of for a period of time sufficient to remove at least the portion of the cladding adhered to the at least one surface of the substrate. The substrate is made of a material that is chemically resistant to the etchant.
Claims21
A method for removing metal cladding adhered to an airfoil wherein the airfoil comprises a substrate and wherein at least a portion of the cladding is adhered to at least one surface of the substrate of the airfoil, the method comprising the step of treating the cladding with a chemical etchant of the metal that the cladding is made of for a period of time sufficient to remove at least the portion of the cladding adhered to the at least one surface of the substrate, the substrate being made of a material that is chemically resistant to the etchant.
A method for removing metal cladding adhered to a turbine fan blade, wherein the blade has convex side and a concave side and comprises a substrate having two surfaces, one surface of the substrate being on the convex side, the other surface of the substrate being on the concave side, and wherein the cladding is positioned along one edge of the blade, the cladding comprising two interior sections and a perimeter section, each interior section being adhered to one surface of the substrate, the method comprising the step of treating the cladding with a chemical etchant of the metal that the cladding is made of for a period of time sufficient to remove the interior sections adhered to the surfaces of the substrate, the substrate being made of a material that is chemically resistant to the etchant.
Dependencies are inferred from the claim text.