| 摘要 |
PCT No. PCT/SE96/00963 Sec. 371 Date Feb. 9, 1998 Sec. 102(e) Date Feb. 9, 1998 PCT Filed Jul. 19, 1996 PCT Pub. No. WO97/04143 PCT Pub. Date Feb. 6, 1997The present invention relates to a cutting tool insert of a carbonitride alloy with titanium as the main component and containing tungsten and cobalt useful for machining, e.g., turning, milling and drilling of metal and alloys. The insert is provided with a coating of at least one wear resistant layer. The composition of the insert and the coating is chosen in such a way that a crack-free coating in a moderate (up to 1000 MPa) compressive residual stress state is obtained. The absence of cooling cracks in the coating, in combination with the moderate compressive stress, gives the tool insert improved properties compared to prior art tools in many cutting tool applications. |
