Throwaway insert

Details Throwaway insert Throwaway insert

1985-03-20

1986-07-01

Thomas, Alexander S.

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

With integral chip breaker, guide or deflector

428 80, 428120, 4285428, 428600, B26D 100, B32B 104

Patent

active

045976961

ABSTRACT:
An improved throwaway insert is proposed which has a cutting edge, a land extending along and inside of the cutting edge, a breaker groove extending along and inside of the land, a flat central area enclosed by the breaker groove, and a plurality of semicircular projections arranged in a chip breaker groove at its corners and its straight portions to enable chip to be satisfactorily broken over wide ranges of the depth of cut and the feed. These projections rise from midway of the breaker groove until they become even with the central area enclosed by the breaker groove.

REFERENCES:
patent: 3815192 (1974-06-01), Ohtsu et al.
patent: 3882580 (1975-05-01), Lundgren
patent: 4318645 (1982-03-01), McCreery

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