CUTTING INSERT, CUTTING TOOL, AND METHOD FOR MANUFACTURING MACHINED PRODUCT

摘要

A cutting insert of one aspect is provided with a top surface having a polygonal shape and including a corner portion, a first side and a second side, each extending from the corner portion, a bottom surface, a side surface, and a cutting edge. The cutting edge includes a corner cutting edge disposed in a position corresponding to the corner portion, and a first cutting edge disposed in a position corresponding to the first side. The top surface includes an inclined surface provided with a first inclined surface disposed along the first side, a second inclined surface disposed along the second side, and a third inclined surface disposed along the corner portion. An inclination angle of the first inclined surface is greater than an inclination angle of the second inclined surface.

主权项

1. A cutting insert comprising:
a top surface having a polygonal shape, and comprising: a corner portion, a first side and a second side, each extending from the corner portion; a bottom surface; a side surface located between the top surface and the bottom surface; and a cutting edge located at an intersecting part of the top surface and the side surface; wherein the cutting edge comprises a corner cutting edge located at the intersecting part corresponding to the corner portion; and a first cutting edge located at the intersecting part corresponding to the first side, wherein the top surface comprises an inclined surface comprising: a first inclined surface along the first side; a second inclined surface along the second side; and a third inclined surface along the corner portion, and wherein an inclination angle of the first inclined surface is greater than an inclination angle of the second inclined surface.