POLYCRYSTALLINE ABRASIVE GRAIN AND GRINDING WHEEL INCLUDING SAME
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United States of America Patent
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Aug 5, 2021
app pub date -
Apr 24, 2019
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Apr 27, 2018
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Abstract
A polycrystalline abrasive grain includes: a plurality of cBN particles; and a binder that binds the plurality of cBN particles, wherein the binder includes at least one of nitride, carbide, and carbonitride of one selected from a group consisting of a group 4a metal, a group 5a metal, and a group 6a metal in a periodic table, and a content of the binder in the polycrystalline abrasive grain is more than or equal to 5 volume % and less than or equal to 50 volume %.
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