LAMINATE MOLDING APPARATUS AND LAMINATE MOLDING METHOD

摘要

PROBLEM TO BE SOLVED: To shorten molding time by starting the light beam radiation without waiting for completion of the powder layer.SOLUTION: A laminate molding apparatus 1 includes: a molding part 2 provided with a molding table 23 on which a three-dimensional shape molded object is molded; a powder layer forming part 3 configured to supply material powder on the molding table 23 to form a powder layer M; a light beam radiating part 4 configured to radiate a light beam to the powder layer M laminated on the molding table 23 and select the region of a solidified layer to form the solidified layer; and a control part 5 configured to control operation of the respective parts, wherein the control part 5 recognizes a moldable region on the powder layer already formed from when the powder layer forming part 3 starts forming one powder layer till when it completes forming the one powder layer, and radiates the light beam in the moldable region. A method for achieving the apparatus is also provided.