Back to results
US 8,475,092 B2Granted
Cutting insert, cutting tool and cutting method using the same
AssigneeKYOCERA Corporation
InventorTakuya Ishida
Life of this patent
Estimating the term…
Abstract
A cutting insert provided with an upper surface, side surfaces, and cutting edges provided at portions at which the upper surface and the side surfaces intersect with each other. Each side surface has grooves reaching the upper surface so as to divide the cutting edge into small cutting edges. Projections are provided on the upper surface at positions to which the grooves extend.
Claims20
A cutting insert, comprising:
- an upper surface;
- a first side surface;
- and
- a first cutting edge located at a first intersection of the upper surface and the first side surface,
- wherein the first side surface comprises a groove portion comprising an end portion reaching the upper surface, the end portion of the groove portion configured to divide the first cutting edge into two small cutting edges, and
- wherein the upper surface comprises a convex portion in an extension area, through which the groove portion passes in the case of extending the groove portion in a longitudinal direction.
3 more elements
A cutting tool, comprising:
- a holder;
- and
- a cutting insert which is installed to the holder,
- wherein at least a part of a first cutting edge of the cutting insert protrudes outward over an outer periphery of the holder;
- wherein the cutting insert comprises:
- an upper surface;
- a first side surface;
- and
- the first cutting edge located at a first intersection of the upper surface and the first side surface,
- wherein the first side surface comprises a groove portion comprising an end portion reaching the upper surface, the end portion of the groove portion configured to divide the first cutting edge into two small cutting edges, and
- wherein the upper surface comprises a convex portion in an extension area, through which the groove portion passes in the case of extending the groove portion in a longitudinal direction.
8 more elements
A cutting method, comprising:
- moving a workpiece relatively closer to a cutting tool;
- cutting a surface of the workpiece by bringing a first cutting edge of the cutting tool which is rotated, into contact with the surface of the workpiece;
- and
- separating the workpiece relatively from the cutting tool;
- wherein the cutting tool comprises:
- a holder and a cutting insert which is installed to the holder, the cutting insert comprising:
- an upper surface;
- a first side surface;
- and
- the first cutting edge located at a first intersection of the upper surface and the first side surface,
- wherein the first side surface comprises a groove portion comprising an end portion reaching the upper surface, the end portion of the groove portion configured to divide the first cutting edge into two small cutting edges, and
- wherein the upper surface comprises a convex portion in an extension area, through which the groove portion passes in the case of extending the groove portion in a longitudinal direction;
- wherein at least a part of the first cutting edge protrudes outward over an outer periphery of the holder.
10 more elements
Dependencies are inferred from the claim text.