Rotary drill bit with abrasion and erosion resistant facing

Details Rotary drill bit with abrasion and erosion resistant facing Rotary drill bit with abrasion and erosion resistant facing

1988-03-31

1989-12-05

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

Drill

419 9, 419 37, 76DIG11, 76DIG12, 428547, 428610, B22F 704

Patent

active

048844772

ABSTRACT:
A rotary drill bit is provided for boring earth formations which includes a bit blank and a metal matrix secured to the blank. The metal matrix includes a filler material dispersed therein. Cutting elements are mounted on the exterior face of the bit, and substantially all of the exposed internal and external surfaces of the bit are coated with an erosion and abrasion resistant hardfacing material bonded to the metal matrix.

REFERENCES:
patent: 3757878 (1973-09-01), Wilder et al.
patent: 3757879 (1973-09-01), Wilder et al.
patent: 3885637 (1975-05-01), Veprintsey
patent: 4173457 (1979-11-01), Smith
patent: 4398952 (1983-08-01), Drake
patent: 4460053 (1984-07-01), Jurgens
patent: 4499795 (1985-02-01), Radtke
patent: 4527642 (1985-07-01), Knowltes
patent: 4610320 (1986-09-01), Beakley
patent: 4624830 (1986-11-01), Barr
patent: 4720371 (1988-01-01), Shirley
patent: 4793968 (1988-12-01), Mosser
patent: 4797251 (1989-01-01), Sakuramoto

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