Relating to cutter assemblies for rotary drill bits

Details Relating to cutter assemblies for rotary drill bits Relating to cutter assemblies for rotary drill bits

1989-03-10

1990-08-14

Kisliuk, Bruce M.

Boring or penetrating the earth

Bit or bit element

Core forming type

175374, 175410, 51309, 76DIG11, 761082, 761084, E21B 1046, E21B 1052

Patent

active

049479458

ABSTRACT:
A cutter assembly, for a rotary drill bit, comprises a preform cutting element mounted on a carrier in the form of a stud or post received in a socket in the bit body. The carrier is a metal matrix composite, formed by sintering, hot-pressing or by an infiltration process, and comprising tungsten metal particles in a metal binder phase, or a mixture of tungsten metal particles and tungsten carbide particles in a metal binder phase.

REFERENCES:
patent: 3979234 (1976-09-01), Northcutt, Jr. et al.
patent: 4024902 (1977-05-01), Baum
patent: 4047514 (1977-09-01), Morishita et al.
patent: 4128136 (1978-12-01), Generoux
patent: 4339009 (1982-07-01), Busby
patent: 4359335 (1982-11-01), Garner
patent: 4478298 (1984-10-01), Hake et al.
patent: 4694918 (1987-09-01), Hall
patent: 4722405 (1988-02-01), Langford, Jr.

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