Boring bar cutter tool

Details Boring bar cutter tool Boring bar cutter tool

1991-06-18

1992-06-30

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having peripherally spaced cutting edges

407 49, 407108, 408233, B23B 5100

Patent

active

051257742

ABSTRACT:
A cutting tool that includes a boring bar, a cutter insert, and a mechanism for retaining the cutter insert on the bar. The bar is formed of tungsten carbide. A relatively short steel retaining element is mounted in the rear end of the bar. Internal threads are formed in the steel element but not in the tungsten carbide bar. The retaining mechanism includes an elongated threaded rod extending longitudinally within the bar into a retainer notch formed in the side surface of the shank of a cutter insert.

REFERENCES:
patent: 421176 (1890-02-01), Lea
patent: 1201614 (1916-10-01), Oakley
patent: 1232980 (1917-07-01), Rossignol
patent: 1337015 (1920-04-01), Heinkel
patent: 2376446 (1945-05-01), Morris
patent: 3122031 (1964-02-01), Farndale
patent: 3363485 (1968-01-01), Holloway
patent: 3363486 (1968-01-01), Fourison
patent: 3455188 (1969-07-01), Pratt et al.
patent: 4116579 (1978-09-01), Hamilton
patent: 4270422 (1981-06-01), Anderson
patent: 4642001 (1987-02-01), Gill et al.
patent: 4848198 (1989-07-01), Royal et al.

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