METHOD FOR MANUFACTURING THREE-DIMENSIONALLY SHAPED ARTICLE

摘要

PROBLEM TO BE SOLVED: To simultaneously perform heat treatment in a process for manufacturing a three-dimensionally shaped article by an optical shaping method.

SOLUTION: A predetermined place of a layer 10 comprising an inorganic or organic powder material is irradiated with a laser beam L to sinter the power at the predetermined place to form a sintered layer 11. A new layer of the powder material is applied to the sintered layer 11 and a predetermined place of the new layer is irradiated with the laser beam to sinter the powder at the predetermined place to form a new sintered layer 11 integrated with the lower sintered layer 11. This process is repeated to shape a required three-dimensional shaped article. At this time, the selective heat treatment of the surface of the layer due to the irradiation with laser beam Lh for heat treatment is performed during shaping in a shaping apparatus.

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