Invention Grant
US09273388B2 Hard film for cutting tool 有权
硬膜用于切割工具

Hard film for cutting tool
Abstract:
Provided is a hard film for a cutting tool formed on a surface of a base material, the hard film being comprised of a nano multi-layered structure comprising a thin layer A, a thin layer B, a thin layer C and a thin layer D or a structure in which the nano multi-layered structure is repeatedly stacked at least twice, wherein the thin layer A is comprised of Ti1-xAlxN (0.5≦x≦0.7); the thin layer B is comprised of Al1-y-zTiyCrzN (0.3≦y≦0.6 and 0
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