| 摘要 |
PURPOSE:To enhance the anti-wear property and the crack resistance of the titled material, by alternately applying TiC layers and TiN layers on the surface of WC hard metal, TiC cermet or TiN cermet in a multiple structure. CONSTITUTION:On the surface of WC hard metal, TiC cermet or TiN cermet, a multiple coating layer as mentioned below is formed by a chemical vapor deposition method. That is, monolayers respectively consisting of TiC and TiN with a thicknesses of 1mum or less, pref. below 0.5mum are alternately coated with eight layers or more, pref., 20 layers or more so as to form the multiple coating layer with a total thickness of 2-15mum. This obtained coating tool has excellent anti-wear property and crack resistance. |
