POWDER MATERIAL, METHOD FOR MANUFACTURING POWDER MATERIAL, METHOD FOR MANUFACTURING SOLID MODEL, AND SOLID MODELING APPARATUS
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United States of America Patent
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Sep 12, 2019
app pub date -
Jun 7, 2017
filing date -
Jun 14, 2016
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Abstract
The present invention is aimed to provide a powder material for the powder bed fusion method, the powder material enabling higher modeling speed and higher manufacturing precision. The present invention relates to a powder material containing a plurality of composite particles. The composite particles contain metal base particles having a number average particle diameter of 20-60 μm inclusive and low-heat-conductivity particles that adhere in an insular form to the surfaces of the base particles and that have a number average particle diameter of 100-300 nm inclusive. The heat conductivity of the low-heat-conductivity particles at 100° C. is 35.0 W/K·m or less, and the heat conductivity of the low-heat-conductivity particles at 100° C. is lower than the heat conductivity of a metal material at 100° C. contained as a main constituent of the metal base particles.
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