Variable radius gash
AssigneeKyocera Sgs Precision Tools, Inc.
InventorsBrian HAMIL, Doug BONFIGLIO, Steve CURTICIAN, Jacob RAK
Life of this patent
Estimating the term…
Abstract
A rotary cutting tool may include a cylindrical body having a cutting portion that extends longitudinally along an axis of the cylindrical body towards an axial end of the cylindrical body. A cutting face may be provided at the axial end, the cutting face having a plurality of end cutting edges associated with a plurality of gash grinds in the cutting face, wherein each gash grind from the plurality of gash grinds is defined by a different constant radius such that of each end cutting edge from the plurality of end cutting edges is of equal length.
Claims12
A rotary cutting tool, comprising:
- a cylindrical body having a cutting portion that extends longitudinally along an axis of the cylindrical body towards an axial end of the cylindrical body;
- and
- a cutting face provided at the axial end, the cutting face having a plurality of end cutting edges associated with a plurality of gash grinds in the cutting face, wherein each gash grind from the plurality of gash grinds is defined by a different constant radius such that of each end cutting edge from the plurality of end cutting edges is of equal length.
A method of manufacturing a cutting tool comprising:
- providing a cylindrical body having a cutting portion that extends longitudinally along an axis of the cylindrical body towards an axial end of the cylindrical body, wherein a cutting face is provided at the axial end, the cutting face having a plurality of end cutting edges;
- plunging a plurality of grinding wheels into the cutting face, wherein each grinding wheel has a different radius;
- and
- grinding a plurality of gash grinds into the cutting face with each of the grinding wheels, each of the grinding wheels grinding an individual gash grind associated with one of the end cutting edges, wherein each of the gash grinds is formed with a different constant radius such that of each end cutting edge from the plurality of end cutting edges is of equal length.
Dependencies are inferred from the claim text.