METHOD FOR MANUFACTURING THREE-DIMENSIONALLY SHAPED STRUCTURE AND THREE-DIMENSIONALLY SHAPED STRUCTURE OBTAINED THEREBY

• Main Authors: YOSHIDA TOKUO, ABE SATOSHI, FUWA ISAO, MORIMOTO KAZUO, UCHINOYA YOSHIYUKI
• Format: Patent
• Language: English
• Published: 22.12.2011
• Subjects: 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

PROBLEM TO BE SOLVED: To provide a three-dimensionally shaped structure that can be used as a die and is suitable for preventing formation of a weld line.SOLUTION: A method for manufacturing the three-dimensionally shaped structure comprises repeating the following steps (i) and (ii): (i) a step of irradiating a predetermined portion of a powder layer with a light beam L so as to sinter or to melt and solidify the powder in the predetermined portion, thereby forming a solidified layer 24; and (ii) a step of forming a new powder layer on the obtained solidified layer 24 and irradiating a predetermined portion of the new powder layer with a light beam L, thereby forming another solidified layer 24. When the steps (i) and (ii) are repeated, a heater element 70 is disposed on a solidified layer, thereby providing the heater element 70 inside the three-dimensionally shaped structure.