| 摘要 |
A cutting tool is disclosed. The cutting tool comprises a substrate and a coating layer on the substrate. The coating layer consists of nitride or carbonitride containing Ti and Al, and has a thickness of 3 to 9 μm on a flank face. A first intensity ratio I(400)/I(311) of the coating layer on an outer surface is larger than the first intensity ratio of the coating layer on the substrate side. |
