Thermally stable cutting structure including PCD and polycrystalline CBN

Thermally stable cutting structure including PCD and polycrystalline CBN

A polycrystalline diamond compact cutter 160 includes a thermally stable polycrystalline diamond layer 168, a carbide substrate 162, and a polycrystalline cubic boron nitride layer 164 interposed between the thermally stable polycrystalline diamond layer 168 and the carbide substrate 162. At least a...

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Bibliographische Detailangaben
1. Verfasser: MADAPUSI K KESHAVEN
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Zusammenfassung:A polycrystalline diamond compact cutter 160 includes a thermally stable polycrystalline diamond layer 168, a carbide substrate 162, and a polycrystalline cubic boron nitride layer 164 interposed between the thermally stable polycrystalline diamond layer 168 and the carbide substrate 162. At least a portion of the polycrystalline cubic boron nitride layer 164 is radially surrounded by the thermally stable polycrystalline diamond layer 168. A portion of a binder material is removed from the polycrystalline diamond layer 168.