Thread cutting throw-away tip

Details Thread cutting throw-away tip Thread cutting throw-away tip

1989-08-22

1991-02-19

Schmidt, Frederick R.

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

With integral chip breaker, guide or deflector

407116, 407115, B23P 1528

Patent

active

049938924

ABSTRACT:
A throw-away thread cutting insert having a cutting tip at a corner part thereof corresponding to a shape of a thread groove, a lead groove formed in an upper surface of the insert and disposed adjacent to and inwardly of said cutting tip, and a curl recess formed in an upper wall of the insert in continuous relation to one side wall of the insert and disposed inwardly of said lead groove.

REFERENCES:
patent: 3786540 (1974-01-01), Lundgren
patent: 3786541 (1974-01-01), Lundgren
patent: 3792515 (1974-02-01), Lundgren
patent: 3947937 (1976-04-01), Hertel
patent: 4575888 (1986-03-01), Muren
patent: 4629371 (1986-12-01), Maeda et al.
patent: 4669925 (1987-06-01), Lowe et al.
patent: 4674924 (1987-06-01), Carlsson et al.
patent: 4681487 (1987-07-01), Pettersson
patent: 4681488 (1987-07-01), Markusson
patent: 4685844 (1987-08-01), McCreery et al.
patent: 4743144 (1988-05-01), Shikata

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