Abstract:
In a featured embodiment, a fan rotor includes a platform. Clevises extend radially inwardly of the platform. Each clevis has an aperture. A hub has hub lugs positioned intermediate spaced ends of the clevises, and apertures. A pin extends through the apertures in the hub and the clevises to connect the platform to the hub. The apertures in the clevises are formed to have an inner surface for supporting the pin. A method of forming a fan blade platform is also disclosed.
Abstract:
A vented plated polymer component is disclosed. The vented plated polymer component may comprise a polymer substrate, a metal plating deposited on a surface of the polymer substrate, and at least one vent formed through the metal plating. The at least one vent may extend from an outer surface of the metal plating to the surface of the polymer substrate, and it may be sized to allow an escape of a gas from the polymer substrate to an external environment surrounding the plated polymer component.
Abstract:
A method for fabricating a metal part with additive manufacturing includes additive manufacturing a resin into a desired shape having an outer surface, followed by preparing the outer surface to receive a catalyst, activating the outer surface with the catalyst; and then plating a first metal onto the outer surface and the catalyst to form a first layer to form a structure. The resin is selected from imidized polyimide, bismaleimide and combinations thereof.
Abstract:
A plated polymer component is disclosed. The plated polymer component may comprise a polymer support, a metal plating deposited on a surface of the polymer support, and at least one flame-retardant additive included in the polymer support. In another aspect, the plated polymer component may comprise a polymer substrate, a metal plating deposited on a surface of the polymer substrate, and a temperature-indicating coating applied to at least one of of the polymer substrate.
Abstract:
A composite component and a plated polymer component are disclosed. The composite component may comprise a body portion formed from an organic matrix composite, a first metal coating applied to a surface of the body portion, and an outer metal layer on the first metal coating that is erosion-resistant. The plated polymer component may comprise a polymer substrate, a metal plating layer applied to a surface of the polymer substrate, and at least one selectively thickened region in the metal plating layer. The at least one selectively thickened region may assist in protecting the plated polymer component against wear and/or erosion.
Abstract:
A method of molding a component includes the steps of providing a plurality of fibers, applying the fibers with a low temperature sizing to form a plurality of sized fibers, forming a preform from the plurality of sized fibers, placing the preform in a mold, and de-sizing the preform by heating the mold to an initial temperature that is sufficient to break down the low temperature sizing to a gaseous phase. A molding apparatus is also disclosed.
Abstract:
Plated polymeric gas turbine engine parts and methods for fabricating lightweight plated polymeric gas turbine engine parts are disclosed. The parts include a polymeric substrate plated with one or more metal layers. The polymeric material of the polymeric substrate may be structurally reinforced with materials that may include carbon, metal, or glass. The polymeric substrate may also include a plurality of layers to form a composite layup structure.
Abstract:
Methods for repairing plated metallic layers on plated polymeric parts are disclosed. First, a polymer is formed into an article of a desired shape or geometry. The outer surface of the article is prepared to receive a catalyst and then the outer surface is activated with the catalyst. A first metallic layer is then plated onto the outer surface to form a structure. Optional additional metallic layers may be applied. Then, a defect in a damaged metal layer is repaired by brush plating or brush electroplating.