THREE-DIMENSIONAL SHAPING DEVICE AND THREE-DIMENSIONAL SHAPING METHOD

• Main Author: SHIMIZU Riku
• Format: Patent
• Language: English; French; German
• Published: 15.12.2021
• 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

A three-dimensional fabrication device irradiates a powder material, which is disposed inside a chamber, with an electron beam to heat the powder material and to thus fabricate a three-dimensional object, and includes a beam emission unit that emits the electron beam to irradiate the powder material with the electron beam, a gas supply unit that supplies an inert gas into the chamber, and a heating unit that heats the inert gas to be supplied into the chamber.