METHOD OF FABRICATING A CURVED COMPOSITE STRUCTURE USING COMPOSITE PREPREG TAPE

A method is provided of fabricating a composite stiffener having a curved web and at least one curved flange. A substantially straight length of unidirectional prepreg tape (30) is placed on a carrier (32). The at least one curved flange is formed by using the carrier to steer a first portion of the...

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Bibliographische Detailangaben
Hauptverfasser:	Daniel Richard SMITH, JR, Donald Chester DARROW, Andrew E. MODIN, Edoardo DEPASE, Mark KLEWIADA
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	AEROPLANES AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING AIRCRAFT AVIATION COSMONAUTICS HELICOPTERS INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method is provided of fabricating a composite stiffener having a curved web and at least one curved flange. A substantially straight length of unidirectional prepreg tape (30) is placed on a carrier (32). The at least one curved flange is formed by using the carrier to steer a first portion of the tape onto a first curved tool surface. The curved web is formed by using the carrier to form a second portion of the tape onto a second curved tool surface. Es proporcionado un método de fabricación de un refuerzo compuesto que tiene un alma curveada y al menos una pestaña curveada. Una longitud sustancialmente recta de cinta unidireccional de prepreg (30) es colocada sobre un portador (32). Al menos la pestaña curveada es formada al utilizar el portador para orientar una primera porción de la cinta sobre una primera superficie de herramienta curveada. El alma curveada es formada al utilizar el portador para formar una segunda porción de la cinta sobre una segunda superficie de herramienta curveada.