Cutters – for shaping – Rotary cutting tool – Face or end mill
Reexamination Certificate
2006-02-14
2006-02-14
Ashley, Boyer D. (Department: 3722)
Cutters, for shaping
Rotary cutting tool
Face or end mill
C407S061000
Reexamination Certificate
active
06997651
ABSTRACT:
An end mill including a cylindrical body having (a) flutes each formed in the cylindrical body and each extending from an axially distal end of the cylindrical body toward an axially proximal end of the cylindrical body, (b) peripheral cutting edges each provided by one of widthwise opposite edges of a corresponding one of the flutes, and (c) end cutting edges each located at the axially distal end of the cylindrical body and contiguous to a corresponding one of the peripheral cutting edges. The end cutting edges include first and second end cutting edges, while the peripheral cutting edges include first and second peripheral cutting edges which are contiguous to the first and second end cutting edges, respectively. A first axial rake angle of the first end cutting edge is smaller than a second axial rake angle of the second end cutting edge, while a first radial rake angle of the first peripheral cutting edge is larger than a second radial rake angle of the second peripheral cutting edge.
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Kawai Ryogo
Osawa Jiro
Addisu Sara
Ashley Boyer D.
OSG Corporation
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