Cutters – for shaping – Including tool having plural alternatively usable cutting edges
Reexamination Certificate
2006-08-15
2006-08-15
Fridie, Jr., Willmon (Department: 3722)
Cutters, for shaping
Including tool having plural alternatively usable cutting edges
C407S113000
Reexamination Certificate
active
07090444
ABSTRACT:
An indexable, helical cutting insert includes at least one axial clearance slash extending from a bottom surface to one of said side walls forming a wiper on an edge of the axial clearance slash. In another embodiment, the cutting insert includes at least one inside cutting edge that extends outwardly a distance from the side wall. In another embodiment, the helical cutting insert includes at least one progressive cutting edge. In another embodiment, the cutting insert includes at least one helical cutting edge that is curved inwardly to enable the cutting insert to perform machining operations on cutters having different diameters.
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Fridie Jr. Willmon
Kennametal Inc.
Meenan Larry R.
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