METHOD FOR MANUFACTURING A COMPOSITE FILAMENT AND USE THEREOF

The invention relates to a method for manufacturing a composite filament (24) aimed to an additive manufacturing application or a winding application, the method comprising, in the following order: providing a thread of fibers (26); impregnating the thread with a liquid reactive thermoplastic resin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BORGHINI Loïc, PERRIN Henri, KLEIN Sébastien
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to a method for manufacturing a composite filament (24) aimed to an additive manufacturing application or a winding application, the method comprising, in the following order: providing a thread of fibers (26); impregnating the thread with a liquid reactive thermoplastic resin (28); co-extruding a sheath (30) of thermoplastic material (32) around the impregnated thread (27); and curing the thermoplastic resin. The invention also relates to a filament obtained at least partly by the method, the use of the filament for manufacturing a product obtained by an additive manufacturing or by a winding technique, and a machine for performing the method. The invention enables a high-speed production (10 meters per minute) of a filament of high quality.