Cutting insert having a flat edge surface for supporting the ins

Details Cutting insert having a flat edge surface for supporting the ins Cutting insert having a flat edge surface for supporting the ins

1994-09-23

1995-06-06

Terrell, William E.

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

With integral chip breaker, guide or deflector

407113, B23C 520, B23C 522

Patent

active

054216796

ABSTRACT:
A cutting insert is produced by form-pressing and sintering of powder. The insert comprises a top chip surface, a bottom surface, and at least one edge surface extending between the top and bottom surfaces. The edge surface includes at least one relief surface portion which intersects the top surface at an acute angle to form therewith a cutting edge. A grinding operation is performed on the edge surface, but only along a lower portion thereof disposed below the relief surface portion, i.e., only along an area which is to be placed against a locating surface of a machine tool during a cutting operation.

REFERENCES:
patent: 1300204 (1919-04-01), Waczula
patent: 4294565 (1981-10-01), Erkfritz
patent: 4616962 (1986-10-01), Ushijima et al.
patent: 4632608 (1986-12-01), Blomberg et al.
patent: 4790693 (1988-12-01), Koblesky
patent: 4992007 (1991-02-01), Satran
patent: 5006020 (1991-04-01), Roos
patent: 5056963 (1991-10-01), Kameno et al.
patent: 5074721 (1991-12-01), Kress et al.
patent: 5078550 (1992-01-01), Satran et al.
patent: 5135336 (1992-08-01), Noguchi et al.
patent: 5145295 (1992-09-01), Satran
patent: 5199827 (1993-04-01), Pantzar

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