Multi-component cutting element using polycrystalline...

Details Multi-component cutting element using polycrystalline... Multi-component cutting element using polycrystalline...

E - Fixed Constructions

21

B

255/69

E21B 10/46 (2006.01) E21B 10/56 (2006.01)

Patent

CA 1245624

MULTI-COMPONENT CUTTING ELEMENT USING POLYCRYSTALLINE DIAMOND DISKS ABSTRACT OF THE DISCLOSURE A diamond cutting table having the geometric characteristics of larger unleached diamond compact products and yet characterised by the physical properties of smaller leached diamond products is fabricated by forming a diamond cutter incorporating a plurality of polycrystalline diamond (PCD) leached disks. The PCD leached disks are disposed in array in a cutting slug formed of matrix material. The matrix material is disposed between and around the plurality of diamond disks and in one embodiment incorporates a volume distribution of diamond grit. The cutting slug is hot pressed or infiltrated to form an integral mass or table. The diamond table is then bonded to a cutter or directly molded into an integral tooth within a matrix body bit. -1-

477325

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