Superabrasive elements, methods of manufacturing, and drill bits including same
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United States of America Patent
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Apr 24, 2018
Issued Date -
N/A
app pub date -
Oct 30, 2013
filing date -
Oct 10, 2006
priority date (Note) -
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Abstract
Methods of manufacturing a superabrasive element are disclosed. In one embodiment, a substrate and a preformed superabrasive volume may be at least partially surrounded by an enclosure and the enclosure may be sealed in an inert environment. Further, the enclosure may be exposed to an elevated pressure and preformed superabrasive volume may be affixed to the substrate. Polycrystalline diamond elements are disclosed. In one embodiment, a polycrystalline diamond element may comprise a preformed polycrystalline diamond volume bonded to a substrate by a braze material. Optionally, such a polycrystalline diamond element may exhibit a compressive stress. Rotary drill bit for drilling a subterranean formation and including at least one superabrasive element are also disclosed.
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