METHOD OF MANUFACTURING 3-DIMENSIONAL MODEL OBJECT USING RESIN GRANULAR MATERIAL, 3-DIMENSIONAL MODEL OBJECT AND RESIN GRANULAR MATERIAL
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United States of America Patent
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May 2, 2024
app pub date -
Feb 22, 2022
filing date -
Feb 25, 2021
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Abstract
A method of manufacturing a 3-dimensional model object by a powder bed fusion method using a resin granular material, in which the resin granular material comprises a resin powder (A) and a flow aid (B), a sphericity of the resin powder (A) is 80 or more and 100 or less, the resin powder (A) has a D80 particle size of 60 μm or less and a D20 particle size of 1 μm or more, the flow aid (B) is contained at an amount of more than 0.01 part by mass and less than 5 parts by mass with respect to 100 parts by mass of the resin powder (A), and steps (a) to (c) are performed in this order repeatedly.
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