Abstract:
A process of depositing a ceramic coating on an airfoil component and the component formed thereby is provided. The process includes depositing a bond coat on an airfoil component including on a trailing edge region thereof that defines a trailing edge of the airfoil component, within holes located within the trailing edge region and spaced apart from the trailing edge, and on lands located within the trailing edge region and between the holes. A ceramic coating is then deposited on the bond coat including on the trailing edge region of the airfoil component, within the holes located within the trailing edge region, and on the lands between the holes. The ceramic coating within the holes is selectively removed without completely removing the ceramic coating on the trailing edge region and the lands between the holes.
Abstract:
Methods and apparatuses by which an oxidized metallic surface can be prepared for a subsequent repair operation without excessive removal of parent metal material. At least one gas is supplied to a limited portion of a metallic surface of a component, and the limited portion is locally heated in the presence of the gas to a treatment temperature sufficient to cause the gas or a gas that forms therefrom to chemically remove oxides from the limited portion of the metallic surface. At least a second portion of the metallic surface is not locally heated to the treatment temperature.
Abstract:
A system and methods for applying a ceramic coating to a component that includes first applying a coating material to a first portion of a component. A removal agent is then applied to a second portion of the component that has an overspray byproduct thereon, and then the ceramic coating material is applied to at least the second portion of the component.
Abstract:
A multi-step electrochemical stripping method includes providing a determined electrode potential between a reference electrode and an article submerged in an electrolyte; recording a current peak value of a current signal flowing through the article; removing the voltage provided to the article when the current signal falls to a determined first current value after passing the current peak value; refreshing the electrolyte; providing the determined electrode potential again for a determined time and determining whether the current signal is less than a determined second current value during the determined time, if not, goes back to the refreshing step; and if yes, the process ends.
Abstract:
A deposition support apparatus and method for coating a component, the deposition support apparatus including a mask container defining an interior and having an opening providing access to the interior. At least one barrier plate with a component aperture wherein the component extends through the component aperture with a first portion of the component located within the interior and a second portion of the component extending above the at least one barrier plate.
Abstract:
A system and methods for applying a ceramic coating to a component that includes first applying a coating material to a first portion of a component. A removal agent is then applied to a second portion of the component that has an overspray byproduct thereon, and then the ceramic coating material is applied to at least the second portion of the component.
Abstract:
A process of depositing a ceramic coating on an airfoil component and the component formed thereby is provided. The process includes depositing a bond coat on an airfoil component including on a trailing edge region thereof that defines a trailing edge of the airfoil component, within holes located within the trailing edge region and spaced apart from the trailing edge, and on lands located within the trailing edge region and between the holes. A ceramic coating is then deposited on the bond coat including on the trailing edge region of the airfoil component, within the holes located within the trailing edge region, and on the lands between the holes. The ceramic coating within the holes is selectively removed without completely removing the ceramic coating on the trailing edge region and the lands between the holes.