Apparatus for Producing Three-Dimensional Shaped Product

An apparatus for producing a three-dimensional shaped product in which the following steps are sequentially repeated:

• spraying one of a metallic and non-metallic powder on a surface of a base plate placed on an upper side of a vertically movable table in a shaping tank and having on the surface at least a material which can be adhered to the metallic or non-metallic powder upon solidification of the powder adjacent to the upper side by sintering and on the upper side of the table,
• subjecting an upper-side surface of the thus sprayed powder to planarization,
• irradiating one of electromagnetic waves and electron beams along a layer having a predetermined thickness to a region to be shaped which is located at an uppermost position, thereby forming a sintered layer, and
• cutting at least one of an end part and upper surface where sintering has been performed to effect molding,
• wherein the apparatus comprises:
• one of:
• a space of vertical direction formed on the table, and
• a space of vertical direction formed and a heat insulating material is filled into the thus formed region, and
• one of a heating device and a cooling device which loads the base plate supporting the sintered layer firmly fixed on the table.