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US 2013/0195671 A1Published application
Hollow airfoil construction utilizing functionally graded materials
AssigneeRaytheon Technologies Corporation
InventorsTahany Ibrahim El-Wardany, Wenjiong Gu, Daniel A. Mosher, Daniel V. Viens, Changsheng Guo
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Abstract
A method of forming an airfoil includes the steps of depositing material to form an airfoil in a first layer, and then depositing material in a second layer on the first layer. The first and second layers have distinct densities. An airfoil is also disclosed. The method provides powerful design advantages.
Claims15
A method of forming an airfoil comprising the steps of:
- depositing material to form an airfoil in a first layer, and then depositing material in a second layer on said first layer;
- and
- wherein said first and second layers have distinct densities.
An airfoil comprising:
- an airfoil body extending between a radially inner end and a radially outer end, said airfoil being constructed by deposition of a plurality of layers, and
- said layers are deposited in changing densities, such as the density of said airfoil varies from said radially inner end to said radially outer end.
Dependencies are inferred from the claim text.