입체구조물의 제조방법 및 3D프린터용 필라멘트

• Main Authors: HIRANO FUMIYA, OHTANI AKIO, HIROOKA NOBUKI, MATSUMOTO NOBUHIKO, ITO HIROTO, NAKAI ASAMI
• Format: Patent
• Language: Korean
• Published: 28.09.2018
• 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; CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS; MECHANICAL FINISHING OF YARNS OR ROPES; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TEXTILES; TRANSPORTING; WARPING OR BEAMING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; YARNS; YARNS OR THREADS

3D프린터를 이용하여 입체구조물을 제조함에 있어서, 내부의 공극의 양이 적은 입체구조물의 제조방법, 및, 상기 입체구조물을 제조하기 위한 3D프린터용 필라멘트의 제공. 연속강화섬유(A)와 연속열가소성 수지섬유(B)를 포함하는 혼섬사로서, 혼섬사 중의 연속강화섬유(A)의 분산도가 60~100%인 혼섬사를 포함하는 필라멘트를, 3D프린터를 이용하여 용융하고, 적층하는 것을 포함하는, 입체구조물의 제조방법. Provided is the method for manufacturing a three-dimensional structure with a less amount of internal voids or bubbles, and also to provide a 3D printer filament used for manufacturing such three-dimensional structure. The method for manufacturing a three-dimensional structure, the method comprises melting and depositing a filament using a 3D printer, the filament comprising a commingled yarn that contains a continuous reinforcing fiber (A) and a continuous thermoplastic resin fiber (B), with a dispersity of the continuous reinforcing fiber (A) in the commingled yarn of 60 to 100%.