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

摘要

A cutting insert according to an embodiment has a polygonal shaped upper surface, a lower surface, a side surface, and a cutting edge. The cutting edge has an arc-shaped first corner edge, an arc-shaped second corner edge, and a wiper edge located between the first corner edge and the second corner edge. The wiper edge has an arc-shaped first wiper edge and an arc-shaped second wiper edge located closer to the second corner edge than the first wiper edge. R0

主权项

1. A cutting insert, comprising:
a polygonal shaped upper surface comprising a first corner and a second corner adjacent to the first corner; a lower surface; a side surface connected to each of the upper surface and the lower surface; and a cutting edge located along an intersection of the upper surface and the side surface, wherein the cutting edge comprises an arc-shaped first corner edge located at the first corner, an arc-shaped second corner edge which are respectively located at the second corner, and a wiper edge located between the first corner edge and the second corner edge, wherein the wiper edge comprises an arc-shaped first wiper edge and an arc-shaped second wiper edge located closer to the second corner edge than the first wiper edge, and wherein R0