METHOD FOR PRODUCING MOLDING

PROBLEM TO BE SOLVED: To provide a method for producing a molding reduced in a dimensional change after molding and also having required hardness.SOLUTION: Provided is a method for producing a molding comprising: a molding step in which a recoat step where material powder is uniformly scattered over...

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Bibliographische Detailangaben
Hauptverfasser:	ARAYA ICHIRO, NAMBU KAZUFUMI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	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 ALLOYS CASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS POWDER METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for producing a molding reduced in a dimensional change after molding and also having required hardness.SOLUTION: Provided is a method for producing a molding comprising: a molding step in which a recoat step where material powder is uniformly scattered over a molding table to form a material powder layer and a molding step where laser light is applied to the prescribed place(s) of the material powder layer to form a sintered layer are repeated to form a desired molding; and a carburization treatment step where the molding is subjected to carburization treatment. The material powder is a ferrous material having a carbon content of 0.1 mass% or lower.SELECTED DRAWING: Figure 1 【課題】造形後の寸法変化が少なく、且つ必要な硬度を有する造形物の製造方法を提供する。【解決手段】本発明のいくつかの態様によれば、造形テーブル上に材料粉体を均一に撒布して材料粉体層を形成するリコート工程と、前記材料粉体層の所定箇所にレーザ光を照射して焼結層を形成する焼結工程とを繰り返して、所望の造形物を形成する造形工程と、前記造形物を浸炭処理する浸炭処理工程と、を備え、前記材料粉体は、炭素含有量が０．１質量％以下の鉄系材料である、造形物の製造方法が提供される。【選択図】図１