| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide CVD coated polycrystalline c-BN cutting tools.SOLUTION: CVD coated cutting tools are provided. A coated cutting tool described herein, in some embodiments, comprises a PcBN substrate and a polished coating adhered to the substrate including one or more layers of AlOdeposited by chemical vapor deposition, where the coating has a surface roughness (R) less than about 600 nm in an area of the cutting tool for contacting a workpiece.</p> |
