MANUFACTURING METHOD OF MOLD

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of a mold which uses additive fabrication, and can improve strength of the mold effectively.SOLUTION: A manufacturing method includes: an additive fabrication step of forming a compound formed of ceramic powder and an organic binder 2 into a predetermined-shaped formed body by additive fabrication; an impregnation step of impregnating the predetermined-shaped formed body formed in the additive fabrication step with an inorganic binder 3; and a sintering step of sintering the predetermined-shaped formed body with the inorganic binder 3 impregnated by the impregnation step to form a mold. The impregnation step is repeated at least twice with a predetermined step interposed therebetween.SELECTED DRAWING: Figure 1