METHOD AND DEVICE FOR MANUFACTURING THREE- DIMENSIONALLY SHAPED ARTICLE

摘要

PROBLEM TO BE SOLVED: To surely obtain a shaped article having a smooth surface. SOLUTION: Powder metallurgical sintered parts in which a plurality of sintered layers 11 are integrally laminated are manufactured by repeating a procedure consisting of steps of; forming a sintered layer 11 by irradiating the prescribed part of a layer 10 of inorganic or organic powders with a light beam to sinter the powder in the corresponding part, and forming a new sintered layer 11 integrated with the previously-formed sintered layer 11 as a lower layer by covering the previously-formed sintered layer 11 with a new layer 10 of the powder material and irradiating the prescribed part with the light beam L to sinter the powder in the corresponding part. In this method, a step wherein the surface and/or unnecessary part of the formed part obtained is removed after the formation of the sintered layer 11 is inserted between a plurality of manufacturing steps of the sintered layer 11. For forming a new layer of the powder material immediately after the removal step, the supply amount of the powder material is larger than that of other steps. COPYRIGHT: (C)2003,JPO