Cemented carbide tip

Details Cemented carbide tip Cemented carbide tip

1989-01-27

1990-07-17

Kisliuk, Bruce M.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

299 91, 172713, 172745, 175375, 175410, 175411, E21B 1046

Patent

active

049417118

ABSTRACT:
A cemented carbide tip for a cutter bit is rotationally symmetric about its longitudinal axis and has a socket in its rear end for brazing to a steel protrusion on a steel tool shank. The tip socket and an outer rearmost facing surface on the tip rear end have respective pluralities of first and second bumps thereon for spacing, centering and aligning the tip on the bit body to facilitate formation of a braze joint of a desired given cross-sectional thickness profile between the tip and bit body.

REFERENCES:
patent: 177973 (1876-05-01), Trissler
patent: 2614813 (1952-10-01), Shepherd
patent: 2628072 (1953-02-01), Baker
patent: 2707619 (1955-05-01), Andersson
patent: 2784943 (1957-03-01), Bylund
patent: 3519309 (1970-07-01), Engle et al.
patent: 3557416 (1971-01-01), Jones
patent: 4190127 (1980-02-01), Wolf
patent: 4201421 (1980-05-01), Den Besten et al.
patent: 4216832 (1980-08-01), Stephenson et al.
patent: 4497520 (1985-02-01), Ojanen
patent: 4547020 (1985-10-01), Ojanen
Kennametal Inc. Drawing Nos. 285-9187 (1969) and 082-8890A (1969).
Handy & Harman Technical Data Sheet No. D-74 (1984).
Designing with Kennametal (1957).
Designing with Kennametal (1980).

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