RESIN POWDER FOR THREE-DIMENSIONAL ADDITIVE MANUFACTURING, METHOD FOR PRODUCING RESIN POWDER FOR THREE-DIMENSIONAL ADDITIVE MANUFACTURING, THREE-DIMENSIONAL ADDITIVE MANUFACTURING PRODUCT, AND METHOD FOR PRODUCING THREE-DIMENSIONAL ADDITIVE MANUFACTURING PRODUCT

摘要

The present invention addresses the problem of providing: a resin powder for three-dimensional additive manufacturing, in which resin particles having different diameters are disposed at a high packing density to impart excellent tensile strength to a three-dimensional additive manufacturing product; a method for producing the resin powder; a three-dimensional additive manufacturing product made using the resin powder; and a method for producing the three-dimensional additive manufacturing product.　A resin powder for three-dimensional additive manufacturing according to the present invention is characterized by being constituted of resin particle aggregates, and characterized in that: the volume average particle diameter of the resin particles is within a range from 1-200 μm; the ratio of the volume average particle diameter MV to the number average particle diameter MN of the resin particles, MV/MN, is 2.5 or greater; the loose bulk density is 0.30 g/cm³ or greater; and the resin particles constituting the resin powder contains a crystalline thermoplastic resin.