ORGANIC FORMULATIONS FOR ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL OBJECTS CONTAINING SINTERABLE MATERIALS

• Main Authors: PASKOVITCH, Yael, PELED, Hagai, ORBAUM, Donna, BEN-MOSHE, Matti
• Format: Patent
• Language: English; French
• Published: 19.05.2022
• Subjects: 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; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; FOUNDRY MOULDING; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; LIME, MAGNESIA; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; PERFORMING OPERATIONS; POWDER METALLURGY; REFRACTORIES; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SLAG; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TRANSPORTING; TREATMENT OF NATURAL STONE; WORKING CEMENT, CLAY, OR STONE; WORKING METALLIC POWDER; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A sinterable paste formulation usable as cast material in a cast-mold process, in combination with a mold material formulation, is provided. The sinterable paste formulation comprises a power of a sinterable material, in an amount of at least 85 % by weight of the total weight of the formulation, a binder material as described in the specification, and an organic vehicle, as described in the specification. The formulation is preferably devoid of water. Methods employing the formulation and objects and products obtained therefrom are also provided. La présente invention concerne une formulation de pâte frittable utilisable en tant que matériau de coulée dans un procédé de moulage par coulée, en association avec une formulation de matériau de moulage. La formulation de pâte frittable comprend une poudre d'un matériau frittable, dans une quantité d'au moins 85 % en poids du poids total de la formulation, un matériau liant tel que décrit dans la description et un véhicule organique tel que décrit dans la description. La formulation est de préférence exempte d'eau. L'invention concerne également des procédés qui utilisent la formulation et des objets et des produits obtenus à partir de ceux-ci.