Laminate molding equipment and laminate molding method

Laminate molding equipment comprising:

• a molding part provided with a molding table on which a three-dimensional shape molded object is adapted to be molded;
• a powder layer forming part configured to supply material powder on the molding table to form a powder layer;
• a beam radiating part configured to radiate one of a light beam and an electron beam to the powder layer on the molding table and select a region to form a solidified layer;
• wherein the powder layer forming part includes:
• powder laminating equipment configured to sequentially form the powder layer on the molding table by moving along a predetermined direction at the molding table, and
• a moving position detecting unit configured to detect a moving position along the predetermined direction at the powder laminating equipment, and
• a control part which recognizes the region to be molded by an output from the moving position detecting unit, which controls the beam radiating part in response thereto, and which controls scanning of the radiating position of the beam on the powder layer along a scanning path by adjusting angles of two scan mirrors according to processing data for controlling a scanning device based on recognition thereof, such that the powder layer forming part and beam radiating part are adapted to be partially executed at the same time,
• wherein the control part recognizes a plurality of divided regions on the molding table, selects the divided regions in the moldable region and radiates the beam in at least one selected divided region, and
• wherein the scanning path adopted in the divided regions is one of the following:
• a spiral scanning path that winds inwardly,
• a spiral scanning path that winds outwardly, and
• a zigzag scanning path.