Cutting structures for rotary drill bits

Details Cutting structures for rotary drill bits Cutting structures for rotary drill bits

1987-06-30

1988-11-01

Massie, Jerome W.

Boring or penetrating the earth

Bit or bit element

Magnetized or with magnet

175410, E21B 1046

Patent

active

047812567

ABSTRACT:
A method of forming a cutting structure for a rotary drill bit comprises brazing a thermally stable polycrystalline diamond cutting element to a carrier, the carrier being formed of a material such that, at the brazing temperature, the difference in coefficient of thermal expansion between said material and the polycrystalline diamond material is less than the difference in coefficient of thermal expansion between tungsten carbide and the polycrystalline diamond material. A suitable carrier material is silicon carbide.

REFERENCES:
patent: 4117968 (1978-10-01), Naidich et al.
patent: 4156123 (1979-05-01), Fischer et al.
patent: 4225322 (1980-09-01), Knemeyer
patent: 4319707 (1982-03-01), Knemeyer
patent: 4338380 (1982-07-01), Erickson et al.
patent: 4352400 (1982-10-01), Grappendorf et al.
patent: 4373410 (1983-02-01), Davis
patent: 4478298 (1984-10-01), Hake et al.
patent: 4608226 (1986-08-01), Lauvinerie
patent: 4686080 (1987-08-01), Hara et al.

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