Hardfacing materials including PCD particles, welding rods...

Details Hardfacing materials including PCD particles, welding rods... Hardfacing materials including PCD particles, welding rods...

2009-07-02

2011-12-20

Neuder, William P (Department: 3672)

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

C427S249700

Reexamination Certificate

active

08079428

ABSTRACT:
Hardfacing materials include particles of polycrystalline diamond (PCD) material embedded within a matrix material. The PCD particles comprise a plurality of inter-bonded diamond grains. Material compositions and structures used to apply a hardfacing material to an earth-boring tool (e.g., welding rods) include PCD particles. Earth-boring tools include a hardfacing material comprising PCD particles embedded within a matrix material on at least a portion of a surface of a body of the tools. Methods of forming a hardfacing material include subjecting diamond grains to elevated temperatures and pressures to form diamond-to-diamond bonds between the diamond grains and form a PCD material. The PCD material is broken down to form PCD particles that include a plurality of inter-bonded diamond grains. Methods of hardfacing tools include bonding PCD particles to surfaces of the tools using a metal matrix material.

REFERENCES:
patent: 4224380 (1980-09-01), Bovenkerk et al.
patent: 4726432 (1988-02-01), Scott et al.
patent: 5127923 (1992-07-01), Bunting et al.
patent: 5174374 (1992-12-01), Hailey
patent: 5174974 (1992-12-01), Hailey
patent: 5248006 (1993-09-01), Scott et al.
patent: 5351769 (1994-10-01), Scott et al.
patent: 5445231 (1995-08-01), Scott et al.
patent: 5641921 (1997-06-01), Dennis et al.
patent: 5663512 (1997-09-01), Schader et al.
patent: 5755298 (1998-05-01), Langford, Jr. et al.
patent: 5755299 (1998-05-01), Langford et al.
patent: 5855247 (1999-01-01), Scott et al.
patent: 6124564 (2000-09-01), Sue et al.
patent: 6173797 (2001-01-01), Dykstra et al.
patent: RE37127 (2001-04-01), Schader et al.
patent: 6684966 (2004-02-01), Lin et al.
patent: 6830598 (2004-12-01), Sung
patent: 6843333 (2005-01-01), Richert et al.
patent: 6872356 (2005-03-01), Butcher et al.
patent: 7261752 (2007-08-01), Sung
patent: 7350599 (2008-04-01), Lockwood et al.
patent: 7458765 (2008-12-01), Stiles et al.
patent: 7497280 (2009-03-01), Brackin et al.
patent: 2003/0024351 (2003-02-01), Pender et al.
patent: 2004/0025443 (2004-02-01), Davies et al.
patent: 2005/0247491 (2005-11-01), Mirchandani et al.
patent: 2006/0162967 (2006-07-01), Brackin et al.
patent: 2007/0193782 (2007-08-01), Fang et al.
patent: 2008/0283305 (2008-11-01), Overstreet et al.
patent: 2010/0101866 (2010-04-01), Bird
International Search Report for International Application No. PCT/US2010/040860 mailed Feb. 9, 2011, 3 pages.
International Written Opinion for International Application No. PCT/US2010/040860 mailed Feb. 9, 2011, 3 pages.

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