POWDER MATERIAL FOR MANUFACTURING THREE-DIMENSIONALLY- SHAPED ARTICLE, METHOD FOR MANUFACTURING THREE- DIMENSIONALLY-SHAPED ARTICLE, AND THREE-DIMENSIONALLY- SHAPED ARTICLE

摘要

PPROBLEM TO BE SOLVED: To easily and efficiently provide a dense and precise shaped article in a method for manufacturing a shaped article having a desired three- dimensional shape by forming a hardened layer through irradiating a powder material with a light beam and stacking the hardened layers. PSOLUTION: In the method for manufacturing the shaped article M having the desired three-dimensional shape, by forming the hardened layer 32 through irradiating the powder material 30 with the light beam 50 and stacking the hardened layers 32, this method is characterized by making the shaped article with the use of the powder material including 50 wt.% or more ferrous powders and one or more non-ferrous powders selected from the group consisting of nickel, a nickel-based alloy, copper, and a copper-based alloy, and impregnating the shaped article with a metallic material having a melting point lower than the shaped article. Then, the method provides the shaped article which has a low surface roughness, a high hardness and a superior strength, and is suitable for a forming die or the like. PCOPYRIGHT: (C)2004,JPO