| 摘要 |
Provided is a surface-coated cutting tool with a hard coating layer exhibiting excellent chipping resistance and wear resistance in a high-speed cutting process. A surface-coated cutting tool comprising a lower layer consisting of a titanium compound layer and an upper layer consisting of an aluminum oxide layer deposited on a surface of a tool substrate constituted of a tungsten carbide-based cemented carbide as a hard coating layer, in which, in the upper layer consisting of the aluminum oxide layer, a (006) plane texture coefficient TC(006) is 1.8 or more, a ratio I(104)/I(110) of a peak intensity I(104) of an (104) plane to a peak intensity I(110) of an (110) plane is in a range of 0.5 to 2.0, and furthermore, an absolute value of a residual stress value in the aluminum oxide layer is 100 MPa or less. |
