Method of making tool inserts and drill bits

Details Method of making tool inserts and drill bits Method of making tool inserts and drill bits

1981-11-30

1984-11-06

Lieberman, Paul

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51293, 51307, 51309, 51DIG30, B24B 100

Patent

active

044810164

ABSTRACT:
A method of making inserts suitable for tool or drill bits which includes the step of fragmenting, e.g. by means of a laser beam, an abrasive compact in a plurality of discrete, non-segmental fragments. The inserts may have a variety of shapes, some of which are new, such as conical, truncated conical or truncated pyrimidal. The inserts are particularly useful for wire-drawing die blanks and core or oil-well drill bits.

REFERENCES:
patent: 2194472 (1940-03-01), Jackson
patent: 2939941 (1960-06-01), Heerschap et al.
patent: 3481723 (1969-12-01), Kistler et al.
patent: 3859407 (1975-01-01), Blanding et al.
patent: 3929432 (1975-12-01), Caveney
patent: 4063909 (1977-12-01), Mitchell
patent: 4098362 (1978-07-01), Bonniee
patent: 4099935 (1978-07-01), Bond et al.
patent: 4103137 (1978-07-01), Levitt et al.
patent: 4156329 (1979-05-01), Daniels et al.
E. D. Vaks, B. M. Sokolov, Machines & Tooling, vol. 48, No. 9, 1977, pp. 48-49.
Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 4, 3rd ed., 1978, pp. 676-688.

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