SURFACE TREATMENT METAL POWDER FOR LASER SINTERING
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United States of America Patent
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Aug 8, 2019
app pub date -
Sep 29, 2017
filing date -
Sep 29, 2017
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Abstract
A surface treatment metal powder having any of the following characteristics is provided as a metal powder that can be suitably used for metal AM and has excellent laser absorbing characteristics: the brightness L* of the surface is 0-50; the color difference ΔEab of the surface is 40 or more; the color difference ΔL of the surface is −35 or less; the color difference Δa of the surface is 20 or less; and the color difference Δb of the surface is 20 or less (when determined on the basis of the object color of a white plate (brightness L*=94.14, color coordinate a*=−0.90, color coordinate b*=0.24)).
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