METHOD FOR CREATING PREFORMS BY APPLYING AND SHAPING ORIENTED FIBERS

The present invention relates to a method for creating three-dimensional preforms that includes: - applying continuous fibers on an application surface so as to form a plurality of fiber plies placed one on top of the other in different orientations, each ply being created by applying one or more st...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	HAMLYN Alexander
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS 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:	The present invention relates to a method for creating three-dimensional preforms that includes: - applying continuous fibers on an application surface so as to form a plurality of fiber plies placed one on top of the other in different orientations, each ply being created by applying one or more strips in one orientation and each strip being formed from one or more fibers; and - shaping the set of plies so as to obtain a preform in the final three-dimensional shape thereof. Said application includes creating at least two plies (5, 6) having a same orientation. The fibers of the second ply (6) are partially placed on top of the fibers of the first ply (5) at the end portions thereof so that relative longitudinal movement of the fibers of the second ply in relation to the fibers of the first ply is achieved during shaping so as to create the final shape of the preform.