Helicopter blade mandrel with roller assembly and methods to make and use it

Methods and apparatus are provided for making a rotor blade spar (14) from composite material wherein a multi-component mandrel (10) is used to form the composite spar (14). The mandrel (10) is made using a number of components (38,44, 50, 56) that are assembled and held in place using a roller asse...

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Bibliographische Detailangaben
Hauptverfasser:	JOHNSTON WAYNE, BAILEY DAVID P, CALLIS RICHARD A, GRAY NATE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AEROPLANES AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING AIRCRAFT AVIATION COSMONAUTICS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HELICOPTERS INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Methods and apparatus are provided for making a rotor blade spar (14) from composite material wherein a multi-component mandrel (10) is used to form the composite spar (14). The mandrel (10) is made using a number of components (38,44, 50, 56) that are assembled and held in place using a roller assembly(62). The roller assembly (62) is removed after pre-cure lay up and compaction of the composite material. Once the roller assembly (62) is removed, the remaining mandrel components (38, 44, 50, 56) can be separated from each other and easily removed from the spar (14). The mandrel components, including the roller assembly ( 62 ), can then be re-assembled and re-used to form additional composite spars.