A method of forming an airfoil (100) includes the steps of (a) providing an airfoil body (106) with a hollow (102) having at least one rib (108) extending to an outer surface, and forming the outer surface of the rib (108) to have at least one groove (110) connecting a hollow pocket (112) within a boundary defined by the rib (108) to a location outwardly of the rib, (b) placing a cover (104) over the hollow (102), and (c) welding the cover (104) to the airfoil body (106), and such that the rib (108) is welded to the blade cover. An intermediate airfoil body (106) is also disclosed.
WELDING METHOD FOR HOLLOW AIRFOILS AND INTERMEDIATE BODY
SCHWEISSVERFAHREN FÜR HOHLPROFILE UND ZWISCHENKÖRPER
PROCÉDÉ DE SOUDAGE POUR SURFACES PORTANTES CREUSES ET CORPS INTERMÉDIAIRE
04.11.2020
Patent
Elektronische Ressource
Englisch
Lift Augmentation on Hollow Airfoils with Flaps
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