Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods
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United States of America Patent
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Mar 20, 2018
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app pub date -
Oct 2, 2015
filing date -
Oct 2, 2015
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Abstract
A cutting element for an earth-boring tool includes a substrate and a volume of superabrasive material disposed on a substrate. The volume of superabrasive material has an exposed outer surface with a non-planar geometry. The cutting element is configured to be located and oriented on an earth-boring tool so as to remove subterranean earth formation material by compressing and fracturing or plastically deforming the formation material with at least a portion of the exposed outer surface of the volume of superabrasive material during use of the earth-boring tool in an earth-boring operation. The exposed outer surface of the volume of superabrasive material includes a first area having a first average surface finish roughness and a second area having a second average surface finish roughness greater than the first average surface finish roughness. Earth-boring tools carrying such cutting elements and methods of forming such earth-boring tools are also disclosed.
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