B - Operations – Transporting – 24 – D
Patent
B - Operations, Transporting
24
D
B24D 3/04 (2006.01) E21B 10/573 (2006.01)
Patent
CA 2556052
PCD composite constructions comprise a diamond body bonded to a substrate. The diamond body comprises a thermally stable diamond bonded region that is made up of a single phase of diamond crystals bonded together. The diamond body includes a PCD region bonded to the thermally stable region and that comprises bonded together diamond crystals and interstitial regions interposed between the diamond crystals. The PCD composite is prepared by combining a first volume of PCD with a second volume of diamond crystal- containing material consisting essentially of a single phase of bonded together diamond crystals. A substrate is positioned adjacent to or joined to the first volume. The first and second volumes are subjected to high pressure/high temperature process conditions, during process the first and second volumes form a diamond bonded body that is attached to the substrate, and the second volume forms the thermally stable diamond bonded region.
Oyen Wiggs Green & Mutala Llp
Smith International Inc.
LandOfFree
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