Cutters – for shaping – Including tool having plural alternatively usable cutting edges – With integral chip breaker – guide or deflector
Reexamination Certificate
2005-08-30
2005-08-30
Banks, Derris H. (Department: 3722)
Cutters, for shaping
Including tool having plural alternatively usable cutting edges
With integral chip breaker, guide or deflector
C407S116000
Reexamination Certificate
active
06935815
ABSTRACT:
A cutting insert is formed with a central planar support face, at least three cutting edges spaced outwardly from and around the support face and forming corners, and a land extending along each cutting edge between the respective corners and projecting from the respective cutting edge inward toward the support face. The land has a central region of a relatively great width measured perpendicular to the respective cutting edge and a pair of side regions flanking the central region and each of a relatively narrow width. The great width is equal to between 1.5 and 4 times the narrow width, and the land forms with a plane of the support face an outwardly open negative land angle of at least 0°.
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Braun Thomas
Schwaner Carsten
Banks Derris H.
Dubno Herbert
Ross Dana
Widia GmbH
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