Patent application number | Description | Published |
20080308197 | Secondary processing of structures derived from AL-RE-TM alloys - A method for processing a metal part includes extruding an Al-RE-TM alloy to form an extruded part, heating the extruded part, and applying a compressive strain greater than about 50% on the heated part. | 12-18-2008 |
20080308610 | Hollow structures formed with friction stir welding - A hollow structure, and a method of forming the hollow structure, where the hollow structure includes first and second metal parts, the second metal part having an interior surface and a tapered support member extending from the interior surface. The hollow structure also includes a friction stir welded joint that extends through the first metal part and into the tapered support member. | 12-18-2008 |
20080311421 | Friction stir welded structures derived from AL-RE-TM alloys - A welded structure that includes first and second metal parts derived from Al-RE-TM alloys, which are secured together at a welded joint by friction stir welding. | 12-18-2008 |
20100068550 | HOLLOW STRUCTURES FORMED WITH FRICTION STIR WELDING - A hollow structure, and a method of forming the hollow structure, where the hollow structure includes first and second metal parts, the second metal part having an interior surface and a tapered support member extending from the interior surface. The hollow structure also includes a friction stir welded joint that extends through the first metal part and into the tapered support member. | 03-18-2010 |
20100247322 | INTERNALLY SUPPORTED AIRFOIL AND METHOD FOR INTERNALLY SUPPORTING A HOLLOW AIRFOIL DURING MANUFACTURING - A hollow airfoil and a method for manufacturing a hollow airfoil is provided. The method includes the steps of: providing a first airfoil portion, which first portion has a wall with an interior surface and an exterior surface, and one or more ribs extending out from the interior surface; providing a second airfoil portion having a wall with an interior surface and an exterior surface; wherein the first airfoil portion and the second airfoil portion have mating geometries in which the one or more ribs extend between the interior surfaces of the walls of the first and second airfoil portion to form at least one internal cavity defined by the interior surface of the first portion wall, one or more of the ribs, and the interior surface of the second portion wall, and wherein the airfoil includes at least one exterior port disposed in one of the first airfoil portion or the second airfoil portion, or is formed between the first and second airfoil portions, which at least one exterior port is in fluid communication with the at least one cavity; disposing a support material within the at least one internal cavity allowing the support material to be in contact with the one or more ribs, which support material is operative to structurally support the one or more ribs; attaching the first and second airfoil portions together; and removing the support material from the at least one internal cavity through the at least one exterior port. | 09-30-2010 |
20110204122 | HOLLOW STRUCTURES FORMED WITH FRICTION STIR WELDING - A hollow structure, and a method of forming the hollow structure, where the hollow structure includes first and second metal parts, the second metal part having an interior surface and a tapered support member extending from the interior surface. The hollow structure also includes a friction stir welded joint that extends through the first metal part and into the tapered support member. | 08-25-2011 |
20110286854 | AIRFOIL COMPONENT - An airfoil component includes an aluminum alloy body having at least an airfoil portion and a root portion. A metallic layer is located on at least a portion of the aluminum alloy body and an electrochemically insulating layer is located between and adjoining the aluminum alloy body and the metallic layer. | 11-24-2011 |
20120024110 | POWDER PROCESSING METHOD - A powder processing method includes degassing a metallic powder in a rotating chamber that is evacuated to a sub-atmospheric pressure. The method may also include storing the metallic powder in a rotating storage chamber that is pressurized to a super-atmospheric pressure with a dry cover gas. | 02-02-2012 |
20120301292 | HYBRID METAL FAN BLADE - A fan blade comprises an airfoil portion and a sheath portion. The sheath portion has a sheath head section, a first sheath flank, and a second sheath flank, both flanks extending chordwise from the forward sheath section. The sheath portion is bonded to the airfoil portion such that the sheath head section covers the forward airfoil edge, defining a blade leading edge. The first sheath flank covers a portion of the first airfoil surface proximate the airfoil forward edge, jointly defining a blade suction surface. The second sheath flank covers a portion of the second airfoil surface proximate the airfoil forward edge, jointly defining a blade pressure surface. The first metallic material is an aluminum alloy containing between about 0.5 wt % and about 3.0 wt % of lithium. | 11-29-2012 |
20120325051 | PRODUCTION OF ATOMIZED POWDER FOR GLASSY ALUMINUM-BASED ALLOYS - A system and method for producing atomized powder for glassy aluminum-based alloys in an inert gas atmosphere. A melt chamber melts the alloy and it is atomized to form powder. The powder is deposited in at least one catch tank. | 12-27-2012 |
20120325378 | EXTRUSION OF GLASSY ALUMINUM-BASED ALLOYS - A method of extruding a glassy aluminum-based alloy billet, by soaking the billet for sufficient time to heat the billet to an extrusion starting temperature of from about 300° F. to about 600° F. and extruding the billet in a streamline die having an extrusion ratio to keep the adiabatic temperature below the starting temperature while maintaining the streamline die at a temperature of about 400° F. to about 600° F. at a ram speed less than that which would raise the streamline die temperature within this range. | 12-27-2012 |
20120328470 | MASTER ALLOY PRODUCTION FOR GLASSY ALUMINUM-BASED ALLOYS - Apparatus is provided for forming aluminum alloy ingots in a sealed chamber having a source of inert gas using a crucible positioned inside the chamber for melting aluminum alloy powder. The crucible has a solid top and a source of inert gas therein. An outlet in the crucible is positioned to draw molten alloy from the crucible at a point proximate the lowest point in the crucible. A tundish adapted to control the flow of molten alloy from the crucible on a path to at least one ingot mold out of the sealed chamber | 12-27-2012 |
20120328472 | FORGING OF GLASSY ALUMINUM-BASED ALLOYS - A forged devitrified aluminum alloy of forging devitrified aluminum alloys having a desired shape. The alloy is forged in a plane strain forging die with the axis of extrusion being parallel to the direction of forging. The alloy is then forged in a product forming forging die having a desired shape such that the original axis of extrusion is aligned with the axis of the forging die resulting in the desired shape | 12-27-2012 |
20130004323 | FAN BLADE PROTECTION SYSTEM - A method for protecting a fan blade with an airfoil, a tip, a root and a sheath, the root to be inserted into a hub includes peening the airfoil of the blade; inserting a scrim cloth between the fan blade and the sheath to galvanically isolate the fan blade from the sheath; bonding the sheath to the blade with an epoxy adhesive; peening the blade root; bonding wear pads to the root with epoxy adhesive to galvanically isolate the root from the hub; applying a protective cover to the tip of the blade; and applying a coating to all exposed areas of the blade to inhibit corrosion. | 01-03-2013 |
20130004327 | ALUMINUM FAN BLADE ROOT - A method of improving fatigue strength in a fan blade includes fabricating a metal fan blade with an airfoil and a root and deep peening the root. | 01-03-2013 |
20130192982 | SURFACE IMPLANTATION FOR CORROSION PROTECTION OF ALUMINUM COMPONENTS - An aluminum alloy component has a surface region alloyed with an anodic metal to increase corrosion resistance in aqueous environments with high salinity or sulfur content. | 08-01-2013 |
20130192996 | SURFACE IMPLANTATION FOR CORROSION PROTECTION OF ALUMINUM COMPONENTS - An aluminum alloy component has a surface region alloyed with an anodic metal to increase corrosion resistance in aqueous environments with high salinity or sulfur content. | 08-01-2013 |
20130195674 | ALUMINUM AIRFOIL - A method of making an aluminum airfoil includes brazing a first airfoil piece and a second airfoil piece together using a braze material that includes an element selected from magnesium and zinc, to form a braze joint between the first airfoil piece and the second airfoil piece. At least one of the first airfoil piece or the second airfoil piece has an aluminum alloy composition that includes greater than 0.8% by weight of zinc. | 08-01-2013 |
20130299339 | SURFACE IMPLANTATION FOR CORROSION PROTECTION OF ALUMINUM COMPONENTS - An aluminum alloy component has a surface region alloyed with an anodic metal to increase corrosion resistance in aqueous environments with high salinity or sulfur content. | 11-14-2013 |
20140076463 | MASTER ALLOY PRODUCTION FOR GLASSY ALUMINUM-BASED ALLOYS - Apparatus is provided for forming aluminum alloy ingots in a sealed chamber having a source of inert gas using a crucible positioned inside the chamber for melting aluminum alloy powder. The crucible has a solid top and a source of inert gas therein. An outlet in the crucible is positioned to draw molten alloy from the crucible at a point proximate the lowest point in the crucible. A tundish adapted to control the flow of molten alloy from the crucible on a path to at least one ingot mold out of the sealed chamber | 03-20-2014 |
20140083080 | Diode Electrical Ground for Fan Blades - A rotor has a rotor body with at least one slot receiving a blade. The blade has an outer surface, at least at some areas, formed of a first material and having an airfoil extending from a dovetail. The dovetail is received in the slot. A diode is in contact with a portion of the dovetail formed of a second material that is more electrically conductive than the first material. The diode is in contact with a rotating element that rotates with the rotor. The rotating element is formed of a third material. The first material is less electrically conductive than the third material. The diode and the rotating element together form a ground path from the portion of the dovetail into the rotor. An engine and a fan blade are also disclosed. | 03-27-2014 |
20140241897 | ALUMINUM BRAZING OF HOLLOW TITANIUM FAN BLADES - A fan blade includes first and second titanium portions that are secured to one another with an aluminum alloy braze. A method of manufacturing a fan blade includes providing first and second titanium portions, applying an aluminum alloy braze to at least one of the first and second titanium portions, and heating the fan blade to melt the aluminum alloy braze and join the first and second portions to one another to provide a fan blade with an airfoil exterior contour. | 08-28-2014 |