Patent application number | Description | Published |
20090185908 | LINEAR FRICTION WELDED BLISK AND METHOD OF FABRICATION - The present invention provides a linear friction welded blisk of a gas turbine engine and method of fabricating the blisk. The blisk includes a blisk hub having a curved periphery and having a central axis formed therethrough. At least one blade joining stub including a planar weld joint surface to which at least one airfoil blade may be welded by linear friction welding is formed about the periphery of the blisk hub. The planar weld joint surface is formed in a plane parallel to the central axis of the blisk hub thereby providing for linear friction welding of the airfoil blade to the planar weld joint surface in a tangential, chordal, or axial direction. The planar weld joint surface reduces the complexity of the linear friction welding machines and tooling, and further provides for an increase in blade count and leading edge accessibility. | 07-23-2009 |
20100124492 | TURBINE NOZZLES AND METHODS OF MANUFACTURING THE SAME - Turbine nozzles and methods of manufacturing the turbine nozzles are provided. In an embodiment, by way of example only, a turbine nozzle includes a first ring, a vane, and a first joint. The first ring comprises a single unitary component and having a first opening and including a first metal alloy. The vane includes a first end disposed in the first opening and includes a second metal alloy. The first joint is formed in the first opening between the first ring and the vane and includes a first braze layer and an oxide layer. The first braze layer is disposed adjacent to the oxide layer, and the first braze layer and the oxide layer are disposed between the first ring and the vane. | 05-20-2010 |
20110129687 | METHODS OF JOINING A FIRST COMPONENT AND A SECOND COMPONENT TO FORM A BOND JOINT AND ASSEMBLIES HAVING BOND JOINTS - A method is included for joining two components to form a bond joint, where the first component includes a first alloy having a first composition and a first microstructure, and the second component includes a second alloy having a second composition. A sputter material is sputtered onto a bond surface of the first component to form an interlayer, the sputter material of the interlayer having a third composition, the interlayer having an initial microstructure, the initial microstructure is a nanocrystalline microstructure or an amorphous microstructure. The interlayer is contacted with a joint surface of the second component to form an assembly, which is subjected to a first pressure, heated to a first temperature to thereby form the bond joint, and heated to a second temperature to transform the initial microstructure into the first microstructure. The first microstructure is different from the nanocrystalline microstructure and the amorphous microstructure. | 06-02-2011 |
20110311389 | METHODS FOR MANUFACTURING TURBINE COMPONENTS - A method is provided for manufacturing a turbine component. The method includes forming a first intermediate turbine article with an additive manufacturing process; encapsulating the first intermediate turbine article with an encapsulation layer to form a second intermediate turbine article; and consolidating the second intermediate turbine article to produce the turbine component. | 12-22-2011 |
20120003086 | TURBINE NOZZLES AND METHODS OF MANUFACTURING THE SAME - A turbine nozzle is provided and includes a first ring having a first microstructure, a vane extending from the first ring, a first porous zone between the first ring and the vane that is more porous than the first microstructure to attenuate thermo-mechanical fatigue cracking between the vane and the first ring. Methods of manufacturing the turbine nozzle are also provided. | 01-05-2012 |
20120222306 | METHODS FOR REPAIRING TURBINE COMPONENTS - A method is provided for repairing a turbine component with a distressed portion. The method includes machining the turbine component into a first intermediate turbine article such that the distressed portion is removed; and rebuilding the first intermediate turbine article into the turbine component with an additive manufacturing process. | 09-06-2012 |
20130004680 | METHODS FOR MANUFACTURING ENGINE COMPONENTS WITH STRUCTURAL BRIDGE DEVICES - A method is provided for manufacturing an engine component. The method includes providing a structural bridge device on a base block; forming a component portion on the structural bridge device with an additive manufacturing technique; removing the component portion from the base block and the structural bridge device; and finishing the component portion to form the engine component. | 01-03-2013 |
20130071562 | METHODS FOR MANUFACTURING COMPONENTS FROM ARTICLES FORMED BY ADDITIVE-MANUFACTURING PROCESSES - A method is provided for manufacturing a component. The method includes forming a diffusion coating on a first intermediate article formed by an additive manufacturing process. The diffusion coating is removed from the first intermediate article forming a second intermediate article having at least one enhanced surface. The diffusion coating is formed by applying a layer of coating material on at least one surface of the first intermediate article and diffusion heat treating the first intermediate article and the layer. The diffusion coating comprises a surface additive layer and a diffusion layer below the surface additive layer. The formation of the diffusion coating and removal thereof may be repeated at least once. | 03-21-2013 |
20130316084 | METHODS FOR MANUFACTURING COMPONENTS FROM ARTICLES FORMED BY ADDITIVE-MANUFACTURING PROCESSES - A method is provided for manufacturing a component. The method includes forming a diffusion coating on a first intermediate article formed by an additive manufacturing process. The diffusion coating is removed from the first intermediate article forming a second intermediate article. The diffusion coating is formed by applying a layer of coating material on at least one surface of the first intermediate article and diffusion heat treating the first intermediate article and the layer. The diffusion coating comprises a surface additive layer and a diffusion layer below the surface additive layer. The formation of the diffusion coating and removal thereof may be repeated at least once. | 11-28-2013 |