METHODS FOR REPAIRING COMPOSITE MATERIAL USING PRE-CURED PLUGS

A method for repairing a composite structure using pre-cured plugs. In accordance with one method, composite material is removed from a first composite laminate (2) to form a cavity (6a) bounded by a tapered internal surface (44) that extends from an opening at an outer mold line surface (24) of the...

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Bibliographische Detailangaben
Hauptverfasser:	Staal, Remmelt Andrew, Lewis, Arne K, Schwartz, Ryan C, Register, Justin H
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 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 for repairing a composite structure using pre-cured plugs. In accordance with one method, composite material is removed from a first composite laminate (2) to form a cavity (6a) bounded by a tapered internal surface (44) that extends from an opening at an outer mold line surface (24) of the first composite laminate. In addition, a second composite laminate is machined to form a plug (4) having a tapered surface (46). Then the plug is placed so that the tapered surface of the plug opposes the tapered internal surface of the first composite laminate. Thereafter, the tapered surface of the plug is bonded to the tapered internal surface of the first composite laminate. Optionally, a hole (3) is drilled in the plug for receiving a fastener.