Cutting element and a method of manufacturing a cutting element

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United States of America Patent

PATENT NO 9956666
SERIAL NO

14174026

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A cutting element includes a substrate and a cutting layer disposed on a surface of the substrate. The cutting layer includes an ultra hard material. The substrate includes tungsten carbide and a metal binder. The substrate has a magnetic saturation value in the range of from 80 to less than 85%. In another aspect, the magnetic saturation value may increase within the substrate along a gradient, wherein proximal to the interface with the cutting layer, the substrate has a magnetic saturation value in the range of from 80 to less than 85%. Drill bits incorporating such cutting elements and methods of manufacturing such cutting elements are described.

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Patent Owner(s)

Patent OwnerAddress
SMITH INTERNATIONAL INCHOUSTON TX 77073

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Belnap, J Daniel Pleasant Grove, US 74 1971
Corbett, Loel G Saratoga Springs, US 2 44

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