| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a surface-coated cutting tool which exhibits excellent wear resistance, chipping resistance, and fusion resistance in high-speed continuous cutting and intermittent cutting of a cut material where a ferrite-phase such as ductile cast iron is greatly deposited. <P>SOLUTION: A lower layer comprised of amorphous BN with an average layer thickness of 0.1-0.3 μm, an intermediate layer comprised of TiBN with an average layer thickness of 0.1-0.3 μm, and an upper layer comprised of TiAlN with an average layer thickness of 1.0-2.0 μm are sequentially vapor-deposited on the surface of a tool base made of a cBN based ultra-high pressure sintered material, and the upper layers of a rake face and a honing face are removed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
