A METHOD OF MANUFACTURING STIFFENED PANELS MADE FROM COMPOSITE MATERIAL

A stringer (16) of fiber reinforced polymerizable thermosetting composite material is provided, the stringer having a cross section of closed or concave shape with two opposite side flanges (16a) that are brought into contact with a skin panel (14) of fiber reinforced polymerizable or polymerized th...

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Bibliographische Detailangaben
Hauptverfasser:	IAGULLI, GIANNI, DE VITA, VINCENZO, INSERRA IMPARATO, SABATO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 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 TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A stringer (16) of fiber reinforced polymerizable thermosetting composite material is provided, the stringer having a cross section of closed or concave shape with two opposite side flanges (16a) that are brought into contact with a skin panel (14) of fiber reinforced polymerizable or polymerized thermosetting composite material. An elongate support (10) coated with a film bag (11) is positioned in a cavity defined between the stringer and the skin panel. The bottom of this assembly rests on a stiff forming tool (15) while the top is covered by a caul plate (17) having a profile congruent with a part of the assembly to be cured. In an autoclave, pressure is applied to the composite material by the tubular inner bag (11) and through the caul plate (17). The pressure is transmitted without the interposition of intermediate mandrels.