Abstract: A disclosed method of hard coating a wear surface of a valve of an aircraft air management system is performed by depositing a hardface alloy powder onto the wear surface, heating the wear surface and the hardface alloy powder to transform the hardface alloy powder into a molten liquid mass, and subsequently cooling the molten liquid hardface alloy mass to solidify the hardface alloy onto the wear surface. The disclosed process provides for localized application and subsequent bonding of the hardface alloy to discrete portions of the wear surface. The solidified hardface alloy coating may then be machined to obtain specific wear surface geometries.

Abstract: A method of manufacturing a lead edge protective sheath for an airfoil component is provided. The method includes generating a digital model of a lead edge protective sheath for an airfoil component, inputting the digital model into an additive manufacturing machine, and printing, with one or more selected materials, a lead edge protective sheath for an airfoil component based on the digital model.

Abstract: A component is provided including a body formed at least partially from a composite material. At least a portion of the composite material is covered by a plating. The plating includes a layer of electroless copper, a layer of electrolytic copper, a layer of nickel strike, and a finishing layer.

Abstract: A valve is provided and includes a component including a surface and a wear plate including a surface disposed in sliding engagement with the surface of the component. The surface of the wear plate includes a corrosion resistant substrate, a secondary layer disposed on a surface of the corrosion resistant substrate, a noble metal layer disposed on a surface of the secondary layer and a tertiary layer disposed on a surface of the noble metal layer.

Abstract: A valve is provided and includes a component including a surface and a wear plate including a surface disposed in sliding engagement with the surface of the component. The surface of the wear plate includes a corrosion resistant substrate, a secondary layer disposed on a surface of the corrosion resistant substrate, a noble metal layer disposed on a surface of the secondary layer and a tertiary layer disposed on a surface of the noble metal layer.

Abstract: A method of processing an article having a substrate and a cobalt-phosphorous coating disposed on the substrate includes heat treating the article. At least one physical characteristic of the cobalt-phosphorous coating is altered using the heat treating to thereby change a performance characteristic of the article. For example, the article may be an actuator component having a bore or a shaft that is movably disposed at least partially within the bore.

Abstract: According to one embodiment, a propeller blade includes a carbon foam core and a structural layer that surrounds at least a portion of the carbon foam core.

Abstract: An aircraft propeller taper bore insert apparatus is provided. The apparatus includes a tapered outer surface and an inner surface. The outer surface is dimensioned and configured to fit within and be of substantially a same size and shape as an aircraft propeller taper bore or an aircraft propeller balancing tube. The inner surface defines an inner cavity configured to receive a balancing medium and includes a plurality of retention formations arranged thereon and configured to support the balancing medium.

Abstract: An aircraft propeller taper bore insert apparatus includes a tapered outer surface, the outer surface dimensioned and configured to fit within and be of substantially a same size and shape as an aircraft propeller taper bore or an aircraft propeller balancing tube, and an inner surface, the inner surface defining an inner cavity configured to receive a balancing medium, the inner surface comprising a plurality of retention formations arranged thereon, and the plurality of retention formations being configured to support the balancing medium.

Abstract: A valve is provided and includes a component including a surface and a wear plate including a surface disposed in sliding engagement with the surface of the component. The surface of the wear plate includes a corrosion resistant substrate, a secondary layer disposed on a surface of the corrosion resistant substrate, a noble metal layer disposed on a surface of the secondary layer and a tertiary layer disposed on a surface of the noble metal layer.

Abstract: A check valve is provided and includes a body including a seat, a hinge bifurcating the seat to define openings and a housing coupled to the hinge and a self-trapping insert of compliant material. The self-trapping insert includes an end portion and is securable in the housing such that the end portion protrudes from a side of the housing to contact with a corresponding check valve flapper in a respective open position.

Abstract: A wear resistant device includes a substrate of a first metallic material and a wear resistant layer disposed on a substrate. The wear resistant layer includes a matrix of a second, different metallic material, particulates dispersed throughout the matrix, and a boron material dispersed within a portion of the matrix.

Abstract: An article having good wear resistance includes a first component including a boride coating and a second component including a cobalt-chromium-molybdenum coating that is in sliding contact with the boride coating of the first component.

Abstract: A check valve is provided and includes a body including a seat, a hinge bifurcating the seat to define openings and a housing coupled to the hinge and a self-trapping insert of compliant material. The self-trapping insert includes an end portion and is securable in the housing such that the end portion protrudes from a side of the housing to contact with a corresponding check valve flapper in a respective open position.

Abstract: A method of manufacturing a sheath for protecting an airfoil component includes the steps of establishing an electro-forming solution having cobalt and phosphorus and electro-forming the sheath with a composition that includes the cobalt and the phosphorus using the electro-forming solution.

Abstract: A butterfly valve comprises a housing including a bore, a rotatable shaft passing through the bore, a disc mounted to the shaft for controlling the flow of a fluid through the bore, a thrust load reacting section and a wear interface. The thrust load reacting section includes a thrust plug assembled in a thrust reacting end of the shaft and a thrust plate secured to the housing. The thrust plate has a well for axially retaining the thrust plug and the thrust reacting end of the shaft. The wear interface includes a first contact region on the thrust plug with a first contact surface and a second contact region at the base of the well with a second contact surface. A portion of the first contact surface is spherical and in contact with a portion of the second contact surface.

Abstract: A water-based silicone coating composition comprises (a) about 39.6 wt % to about 67.3 wt % of a silicone resin emulsion; (b) about 8.3 wt % to about 19.2 wt % of a non-water reactive leafing filler material having a laminar structure; (c) about 0.05 wt % to about 3.0 wt % of a water soluble nonionic surfactant; (d) about 0.05 wt % to about 0.15 wt % of a minimally toxic biocide solution including at least one active biocide component effective against anaerobic sulfur-reducing bacteria; and (e) about 10.35 wt % to about 52.0 wt % of water. The sum of components a, b, c, d, and e total 100 wt % of the coating composition.

Abstract: According to one embodiment, a propeller blade includes a carbon foam core and a structural layer that surrounds at least a portion of the carbon foam core.

Abstract: According to one embodiment, a propeller blade includes a metallic foam core and a structural layer that surrounds at least a portion of the metallic foam core.

Abstract: Systems and methods of transforming existing sets of instructions into a comprehensive user guidance experience for presentation and use by a user, and more particularly, to systems and methods of constructing a knitted garment from disparate instructional content. More particularly, the method includes receiving content from one or more instructional manuals, modifying the received content, selecting instructional content parts of interest, adding and editing additional sub-part content such as reference material or user-specific content to the parts of interest, assembling the instructional sub-parts and parts into an integrated scheme for presentation provided to a user, and tracking the users progress through the integrated instructional scheme. The instructional content may be received in text or graphical format. The integrated instructional scheme may be presented to the user via a graphical user interface.