Cutting insert with elliptical cutting edge
AssigneeKennametal Inc.
InventorKevin Michael Gamble
Life of this patent
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Abstract
A cutting insert for a cutting tool is described. The cutting insert includes a front surface, a generally planar rear surface opposite the front surface, a generally planar first end surface, a generally planar second end surface opposite the first end surface, a generally planar first side surface, a generally planar second side surface opposite the first side surface. The front surface is continuously convex extending entirely between the first and second surfaces and entirely between the first and second side surfaces. At least one end surface is formed with a clearance angle (A1, A2, A3) to produce a cutting edge that is elliptical in shape having a relatively small depth-of-cut (DOC) to produce an extremely fine finish on a workpiece.
Claims17
A cutting insert, comprising:
- a front surface,
- a rear surface opposite the front surface,
- a first end surface,
- a second end surface opposite the first end surface,
- a first side surface,
- a second side surface opposite the first side surface,
- a first cutting edge formed at an intersection between the front surface and the first end surface,
- wherein the front surface is continuously convex and extends entirely between the first and second end surfaces and entirely between the first and second side surfaces;
- wherein the first cutting edge is elliptical in shape;
- and
- wherein the first and second end surfaces are substantially identical to each other, and wherein the first and second side surfaces are substantially identical to each other.
A cutting insert, comprising:
- a front surface,
- a rear surface opposite the front surface,
- a first end surface,
- a second end surface opposite the first end surface,
- a first side surface,
- a second side surface opposite the first side surface,
- a first cutting edge formed at an intersection between the front surface and the first end surface,
- wherein the front surface is continuously convex and extends entirely between the first and second end surfaces and entirely between the first and second side surfaces;
- wherein the first cutting edge is elliptical in shape;
- and
- wherein the first end surface is parallel to the second end surface.
Dependencies are inferred from the claim text.