THREE-DIMENSIONAL MODELING METHOD

• Main Authors: TSUDA YUICHIRO, KANAMORI HAJIME, ENZAKI SATOSHI
• Format: Patent
• Language: English; Japanese
• Published: 28.03.2024
• 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; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a three-dimensional molding method capable of easily separating a shell from a hardened core material to obtain a three-dimensional molded object.SOLUTION: There is provided a three-dimensional molding method that comprises: a core material filling step of filling a core material 116 that is a liquid phase material into a core portion 126 that is a portion surrounded by an inner wall surface of a shell 125 for defining an outer shape of a three-dimensional object 101; a core material curing step of curing the core material 116; and a separation step of separating at least a part of the shell 125 from the hardened core material 116 to obtain the three-dimensional object 101 made of the core material 116 and having an outer shape that follows the shape of the core portion 126. The separation step is performed under a temperature condition such that at least one of the shell 125 and a cured core material 116a softens.SELECTED DRAWING: Figure 4 【課題】硬化したコア材から容易にシェルを分離させて立体造形物を得ることができる立体造形方法を提供する。【解決手段】立体造形物１０１の外形を規定するシェル１２５の内壁面に囲われた部分であるコア部１２６に液相材料であるコア材１１６を充填するコア材充填工程と、コア材１１６を硬化させるコア材硬化工程と、シェル１２５の少なくとも一部を硬化後のコア材１１６から分離させ、コア部１２６の形状に倣った外形を有しコア材１１６からなる立体造形物１０１を得る分離工程と、を備える立体造形方法であり、分離工程は、シェル１２５と硬化後のコア材１１６ａの少なくとも一方が軟化する温度条件下で実施される。【選択図】図４