DEVICE FOR MANUFACTURING THREE-DIMENSIONAL SHAPED OBJECT

• Main Authors: TAKENAMI Masataka, UKEGAWA Syuu, YAMAUCHI Kousuke
• Format: Patent
• Language: English; French; German
• Published: 20.02.2019
• 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; CASTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING METALLIC POWDER; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The apparatus for manufacturing a three-dimensional shaped object according to the present invention comprises a chamber (6), a transmission window (8), a blow-out port (8) and a cover member (11), wherein a solidified layer is formed by irradiation of a predetermined portion of a material layer with a light beam, thereby allowing a sintering of the material in the predetermined portion or a melting and subsequent solidification of the material, the material layer being provided within the chamber (6). The transmission window (8) is provided in the chamber (6), allowing the light beam to be transmitted therethrough. The blow-out port (10) is located around the transmission window (8), and serves for blowing out an inert gas (16) toward an interior of the chamber (6). The cover member (11), which is positioned below the blow-out port (10) and also serves for surrounding the blow-out port (10), has an annular form. A gap (12) through which the inert gas (16) passes is provided between the cover member (11) and the transmission window (8).