| 摘要 |
Problem: To provide a cutting tool that exhibits superior chipping resistance and wear resistance. Resolution means: A cutting tool 1 is provided with a base 2, and a coating layer 6 comprising columnar crystals 7 that cover the surface of the base 2. A Cutting edge 5 is formed at the crossing ridge line of a rake face 3 and a flank face 4. The average inclination angle (¸2) of the flank face 4, in the longitudinal direction of the columnar crystals 7 with respect to the direction orthogonal to the surface of the base 2, is greater than the average inclination angle (¸1) of the rake face 3, in the longitudinal direction of the columnar crystals 7 with respect to the direction orthogonal to the surface of the base 2. |
