Ceramic cutting insert

Cutters – for shaping – Including tool having plural alternatively usable cutting edges – With integral chip breaker – guide or deflector

Patent

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Details

407113, 407116, 407119, B23B 2714, B23B 2722

Patent

active

049630610

ABSTRACT:
In a ceramic indexable cutting insert, an edge strengthening land extends rearwardly of a beveled cutting edge at an angle of from about 80 to about 100 degrees with respect to the peripheral side surface, and a grooved recess extents rearwardly and along the edge strengthening land to direct chips upwardly and outwardly away from the insert and the cutting edge. In one embodiment of the present invention intended for conditions of heavy depth of cut, enhanced edge strength is sacrificed and an edge strengthened land is not provided.

REFERENCES:
patent: 4116576 (1978-09-01), Gawryk, Sr.
patent: 4218160 (1980-08-01), Arnold
patent: 4247232 (1981-01-01), McCreery et al.
patent: 4681488 (1987-07-01), Markusson
patent: 4755086 (1988-07-01), Stashko
patent: 4787784 (1988-11-01), Bernadic et al.
patent: 4856942 (1989-08-01), Bernadic et al.
patent: 4859122 (1989-08-01), Patterson et al.

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