Cutting insert with twisted chip surface

Details Cutting insert with twisted chip surface Cutting insert with twisted chip surface

1996-12-23

1998-09-22

Pitts, A. L.

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

With integral chip breaker, guide or deflector

407115, 407116, B23C 520

Patent

active

058105212

ABSTRACT:
An indexable cutting insert comprises an upper surface, a bottom surface and side surface extending between said two surfaces. Between two adjacent cutting corners, a rake surfaces is formed such that the rake angle decreases with increasing cutting depth. In this way the cutting edge is reinforced towards a maximal cutting depth. This configuration is favorable, for example, at the machining of materials with a tendency of surface hardening.

REFERENCES:
patent: 4318645 (1982-03-01), McCreery
patent: 4940369 (1990-07-01), Aebi et al.
patent: 5199827 (1993-04-01), Pantzar
patent: 5388932 (1995-02-01), DeRoche et al.
patent: 5544984 (1996-08-01), Pantzar

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