A PROCESS FOR PRODUCING A THREE-DIMENSIONAL GREEN BODY BY A FUSED FILAMENT FABRICATION (FFF) PROCESS

The invention relates to a process for producing a three-dimensional green body by a fused filament fabrication process employing at least one filament, which comprises a core material (CM) coated with a layer of a shell material (SM), and a three- dimensional extrusion printer (3D printer). The thr...

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Bibliographische Detailangaben
Hauptverfasser:	VOLKMANN, Felix Arndt, KOPPING, Jordan Thomas, SCHILLO, Sebastian Mathias, WELLER, Lothar, LEUTZ, Daniel
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ARTIFICIAL STONE CASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY REFRACTORIES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SLAG TRANSPORTING TREATMENT OF NATURAL STONE WORKING METALLIC POWDER WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a process for producing a three-dimensional green body by a fused filament fabrication process employing at least one filament, which comprises a core material (CM) coated with a layer of a shell material (SM), and a three- dimensional extrusion printer (3D printer). The three-dimensional extrusion printer 0contains at least one nozzle and at least one mixing element. The invention further relates to three-dimensional objects and an extruded strand obtained by the process. La présente invention concerne un procédé de production d'un corps vert tridimensionnel par un procédé de dépôt de fil fondu utilisant au moins un fil, qui comprend un matériau de cœur (CM) revêtu d'une couche d'un matériau de coque (SM), et une imprimante tridimensionnelle à extrusion (imprimante 3D). L'imprimante tridimensionnelle à extrusion contient au moins une buse et au moins un élément mélangeur. La présente invention concerne en outre des objets tridimensionnels et un brin extrudé obtenu par le procédé.