Disposable cutting insert and tool holder therefor

Details Disposable cutting insert and tool holder therefor Disposable cutting insert and tool holder therefor

1975-07-31

1977-12-27

Hinson, Harrison L.

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

With integral chip breaker, guide or deflector

82 36R, B26D 100, B23B 2900

Patent

active

040652238

ABSTRACT:
An indexible carbide cutting tool insert and tool holder therefor providing a plurality of right-angled cutting edges positioned to finish cut journals at a negative back rake angle of 1.degree. to 4.degree. with a negative side rake angle of 1.degree. to 4.degree. and with an end relief angle and side relief angle of not less than 1.degree.. The cutting edges include nose cutting radius portions for contour cutting, finish cutting flats and side cutting portions to provide a single indexible insert with the capability of performing a complete machining operation in the finish turning of bearing journals. Chip-breakers are provided to cooperate with each of the cutting edge portions to prevent the formation of long, continuous chips, which are customarily formed in connection with turning steel at high speeds especially with the use of carbide cutting tools.

REFERENCES:
patent: 2659962 (1953-11-01), Doerseln
patent: 2903781 (1959-09-01), Hudson
patent: 2949662 (1960-08-01), Cook et al.
patent: 3136031 (1964-06-01), Cassidy
patent: 3137917 (1964-06-01), Dowd
patent: 3229349 (1966-01-01), Leksell
patent: 3395434 (1968-08-01), Wirfelt
patent: 3492708 (1970-02-01), Dombrowski
patent: 3621549 (1971-11-01), Billups

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