Fan blade and method of manufacturing same
AssigneeUnited Technologies Corporation
InventorsMichael Parkin, James O. Hansen, Christopher J. Hertel, David R. Lyders
Life of this patent
Estimating the term…
Abstract
An airfoil for a gas turbine engine includes a substrate and a sheath providing an edge. A cured adhesive secures the sheath to the substrate. The cured adhesive has a fillet that extends beyond the edge that includes a mechanically worked finished surface. A method of manufacturing the airfoil includes the steps of securing a sheath to a substrate with adhesive, curing the adhesive, and mechanically removing a portion of the adhesive extending beyond the sheath.
Claims20
An airfoil for a gas turbine engine, comprising:
- a substrate;
- a sheath providing an edge;
- and
- a cured adhesive securing the sheath to the substrate, the cured adhesive having a fillet extending beyond the edge that includes a mechanically worked finished surface.
A tool for manufacturing an airfoil, comprising;
- a body having first, second, and third surfaces, the first and second surfaces adjacent one another and generally at a right angle to one another, the third surface adjoining the second surface at an obtuse angle and providing a sharp edge configured to scrape a cured adhesive, the first and second surfaces configured to follow an airfoil sheath contour.
A method of manufacturing an airfoil for a gas turbine engine, comprising the steps of:
- securing a sheath to a substrate with adhesive;
- curing the adhesive;
- and
- mechanically removing a portion of the adhesive extending beyond the sheath.
A gas turbine engine comprising:
- a fan section comprising a plurality of fan blades, at least one of said fan blades comprising:
- a substrate;
- a sheath providing an edge;
- and
- a cured adhesive securing the sheath to the substrate, the cured adhesive having a fillet extending beyond the edge that includes a mechanically worked finished surface.
Dependencies are inferred from the claim text.