Boring bar

Details Boring bar Boring bar

1988-12-23

1990-08-14

Schmidt, Frederick R.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having stepped cutting edges

407 58, 407 61, B26D 100

Patent

active

049483056

ABSTRACT:
Boring bar having plural circumferentially spaced cutting inserts with incremental radial and axial spacing for innermost radial and foremost axial to outermost radial and rearmost axial in progressive sequence relative to the direction of rotation.

REFERENCES:
patent: 1418485 (1922-06-01), Smith
patent: 1610087 (1926-12-01), Hanson
patent: 2048058 (1936-07-01), Comeau
patent: 2396289 (1946-03-01), Ross
patent: 4074594 (1978-02-01), Dall
patent: 4765782 (1988-08-01), Ohkita
patent: 4844666 (1989-07-01), Tsumjimura

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