Cutting insert, cutting tool, and method of manufacturing machined product using the same
AssigneeKYOCERA Corporation
InventorYoshihiro Inoue
Life of this patent
Estimating the term…
Abstract
According to the present disclosure, a cutting insert includes an upper surface having a polygonal shape and includes a corner, a side surface adjacent to the upper surface, a cutting edge and a protrusion. The cutting edge is located at a ridge part in which the upper surface intersects with the side surface and includes a corner part located at the corner. The protrusion is located on the upper surface. The protrusion includes a first protrusion on a bisector of the corner in a top view. The protrusion further includes a second protrusion adjacent to the first protrusion in a direction orthogonal to the bisector. The second protrusion is closer to the corner than the first protrusion in the top view.
Claims19
A cutting insert, comprising:
- an upper surface having a polygonal shape and comprising a corner;
- a side surface adjacent to the upper surface;
- a cutting edge located at a ridge part in which the upper surface intersects with the side surface and comprising a corner part located at the corner;
- and
- a protrusion located on the upper surface, comprising:
- a first protrusion located on a bisector of the corner in a top view;
- a second protrusion adjacent to the first protrusion in a direction orthogonal to the bisector in the top view;
- and
- a third protrusion;
- and
- wherein
- the second protrusion is closer to the corner than the first protrusion in the top view;
- the first protrusion is located between the second protrusion and the third protrusion in the direction orthogonal to the bisector in the top view, and
- the first protrusion is closer to the corner than the third protrusion in the top view.
A cutting insert, comprising:
- an upper surface having a polygonal shape and comprising a corner;
- a side surface adjacent to the upper surface;
- a cutting edge located at a ridge part in which the upper surface intersects with the side surface and comprising a corner part located at the corner;
- and
- a protrusion located on the upper surface, comprising:
- a first protrusion located on a bisector of the corner in a top view;
- and
- a second protrusion adjacent to the first protrusion in a direction orthogonal to the bisector in the top view, and
- wherein
- the second protrusion is closer to the corner than the first protrusion in the top view, and
- the second protrusion is taller than the first protrusion.
Dependencies are inferred from the claim text.