Cutters – for shaping – Including tool having plural alternatively usable cutting edges
Reexamination Certificate
2008-05-20
2008-05-20
Fridie, Jr., Willmon (Department: 3722)
Cutters, for shaping
Including tool having plural alternatively usable cutting edges
C407S114000, C407S115000, C407S116000
Reexamination Certificate
active
11853476
ABSTRACT:
A polygonal indexable insert has cutting edges that run rectilinearly or in a curved manner in a plane perpendicular to a locating surface and that fall from cutting corners having acute angles to cutting corners with obtuse angles following one another alternately. The cutting edges have a rake face which first of all falls and then rises with a back region. The back region together with a center part of the indexable insert forms an intersection curve. The intersection curve lies at a distance a from the starting point of the associated cutting edge in the region of the cutting corners in each case at their intersection with the angle bisector. It is at a distance b from the end point of the associated cutting edge in the region of the cutting corners in each case at their intersection with the angle bisector. The distance b is greater than the distance a.
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Rofner Rudolf
Urschitz Harald
Venturini Remus
Ceratizit Austria GmbH
Fridie Jr. Willmon
Greenberg Laurence A.
Locher Ralph E.
Stemer Werner H.
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