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US 2010/0071964 A1Published application
Thick Pointed Superhard Material
OwnerDavid R. Hall, Ronald Crockett +3inventors
InventorsDavid R. Hall, Ronald Crockett, Jeff Jepson, Scott Dahlgren, John Bailey
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Abstract
In one aspect of the invention, a high impact resistant tool having a superhard bonded to a cemented metal carbide substrate at a non-planar interface. The superhard material has a substantially pointed geometry with a sharp apex having 0.050 to 0.125 inch radius measured from a direction substantially perpendicular to a central axis of the tool. The superhard material also has a 0.100 to 0.500 inch thickness from the apex to the non-planar interface.
Claims19
A high impact resistant tool, comprising
- a sintered polycrystalline diamond material bonded to a cemented metal carbide substrate at a non-planar interface;
- the diamond material comprises a substantially pointed geometry with an apex comprising 0.050 to 0.125 inch radius of curvature measured from a direction substantially perpendicular to a central axis of the tool;
- the diamond material comprises a 0.100 to 0.500 inch thickness from the apex to the non-planar interface;
- and
- the central axis intersects the interface between the diamond material and substrate.
2 more elements
Dependencies are inferred from the claim text.