Methods of forming cutting elements and earth-boring tools carrying such cutting elements
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United States of America Patent
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May 8, 2018
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app pub date -
Jun 22, 2015
filing date -
Jun 22, 2015
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Abstract
A method of forming a cutting element for an earth-boring tool includes forming a table of superabrasive material over a substrate in an HTHP environment such that the table of superabrasive material is bonded to the substrate. The table of superabrasive material and the substrate form a cutting element. The method includes removing the cutting element from the HTHP environment, ascertaining predictable residual stresses within the table of superabrasive material, and marking the cutting element with at least one mark. The at least one mark provides indication of a region of the table of superabrasive material having a maximum or minimum residual stress therein. An additional method includes obtaining such a marked cutting element and affixing the cutting element on an earth-boring tool in a preferential orientation as indicated at least partially by the mark.
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