SURFACE-COATED CUTTING TOOL AND METHOD FOR MANUFACTURING SAME

摘要

This surface-coated cutting tool is characterized in that the tool includes a base material and a film formed on the base material, the film includes at least one TiCN layer, the TiCN layer has a columnar crystal region, the columnar crystal region has a composition represented by the formula TiCxNy (0.65=x/(x+y)=0.90), and that the face interval of the (422) face is 0.8765-0.8790 Å.