Cutting tool
AssigneeKYOCERA Corporation
InventorsYoshiki Sakamoto, Masahiro Waki, Yaocan Zhu
Life of this patent
Estimating the term…
Abstract
A cutting tool including a base member and a coating layer. The base member includes a rake face and a flank face. The coating layer has a composition represented by a first chemical formula of CraM1-a(C1-xNx), wherein M represents at least one selected from Ti, Al, Si, W, Mo, Ta, Hf, Nb, Zr, and Y, 0.01≦a≦0.5, and 0≦x≦1. The coating layer is disposed on the base member and includes a cutting edge at an intersecting ridge line between the rake face and the flank face. The coating layer further comprises droplets thereon. An average composition of the droplets disposed on the rake face has a Cr content higher than the Cr content of the average composition of the droplets disposed on the flank face.
Claims6
A cutting tool, comprising a rake face and a flank face and further comprising:
- a base member;
- and
- a coating layer is having a composition represented by a chemical formula of CraM1-a(C1-xNx), wherein M represents at least one selected from Ti, Al, Si, W, Mo, Ta, Hf, Nb, Zr, and Y, 0.01≦a≦0.5, and 0≦x≦1,
- said coating layer being provided on the base member, forms the surface of the rake face and the flank face and comprises a cutting edge at an intersecting ridge line between the rake face and the flank face,
- wherein the coating layer further comprises droplets thereon, and an average composition of the droplets provided on the rake face has a Cr content that is higher than the Cr content of the average composition of the droplets provided on the flank face.
Dependencies are inferred from the claim text.