METHOD FOR MANUFACTURING THREE-DIMENSIONAL MOLDING, AND MOLDING DIE

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing three-dimensional molding capable of freely forming a fluid passage of an optimum shape in a powder- bonded body. SOLUTION: A powder-bonded layer is formed by irradiating the light beam on a predetermined part of a powder layer to be melted and bonded, the powder layer is covered on this bonded layer, and the light beam is irradiated on the predetermined part of the powder to bond the powder and form the bonded layer integrated with the bonded layer therebelow. By repeating this operation, a three-dimensional molding is manufactured by the powder-bonded body A with a plurality of bonded-layers integrally layered thereon. The fluid passage 9 having an inlet 7 and an outlet 8 is formed at a part of low density by changing the condition of irradiation of the light beam to partially change the density of the powder-bonded body A.