Cutting insert with undulating concave chip forming groove

Details Cutting insert with undulating concave chip forming groove Cutting insert with undulating concave chip forming groove

1995-03-20

1997-12-09

Rachuba, M.

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

With integral chip breaker, guide or deflector

407115, B23B 2716, B23C 520

Patent

active

056953038

ABSTRACT:
A cutting insert for use in a cutting tool has upper, lower and side surfaces and at least one cutting edge formed at an intersection of the upper surface with the side surface thereof. A rake face of the insert is formed with an undulated chip forming groove extending along the cutting edge and comprising a succession of alternating depressed and raised portions. Each raised portion of the chip forming groove is formed with a truncated top portion of a width which is substantially less than a distance between two adjacent truncated top portions. The depressed and raised portions preferably extend, in the direction perpendicular to the cutting edge, along the entire width of the chip forming groove.

REFERENCES:
patent: 3963365 (1976-06-01), Shallenberger
patent: 4215957 (1980-08-01), Holma et al.
patent: 4988242 (1991-01-01), Pettersson et al.
patent: 5044840 (1991-09-01), Fouquer et al.
patent: 5074720 (1991-12-01), Loqvist et al.
patent: 5116167 (1992-05-01), Niebauer
patent: 5158402 (1992-10-01), Satran et al.
patent: 5203649 (1993-04-01), Katbi et al.
patent: 5282703 (1994-02-01), Itaba et al.

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