| 摘要 |
A cutting tool insert is formed from a substrate selected from cemented carbide, cermet, ceramics, cubic boron nitride based material or high speed steel. The insert includes a hard and wear-resistant coating formed from laminar polycrystalline metal nitrides layers. The laminar polycrystalline metal nitrides layers have a repetitive form . . . A/B/A/C/A/B/A/C/ . . . with a total thickness of about 0.5 μm to about 5 μm. |
