METHOD OF LOCALLY INFLUENCING RESIN PERMEABILITY OF A DRY PREFORM

METHOD OF LOCALLY INFLUENCING RESIN PERMEABILITY OF A DRY PREFORM

A method of locally influencing resin permeation through a dry preform (10) having one or more reinforcement ply layers (202a, 202b, 202c), comprising applying a selectively permeable veil 205 to at least one of the reinforcement ply layers (202a, 202b, 202c) of the dry preform (10); the selectively...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SZARSKI, MARTIN, MEURE, SAM
Format: Patent
Sprache:eng ; fre
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 of locally influencing resin permeation through a dry preform (10) having one or more reinforcement ply layers (202a, 202b, 202c), comprising applying a selectively permeable veil 205 to at least one of the reinforcement ply layers (202a, 202b, 202c) of the dry preform (10); the selectively permeable veil having a veil pattern of a predetermined spatial density and being adapted to dissolve or melt into resin to at least locally impart toughness to the preform upon resin infusion and curing of the dry preform; infusing resin into the dry preform (10); and directing the resin through the selectively permeable veil (205) such that the resin impregnates through the dry preform (10).