The surface canning cutting tool and its production mannered null tungsten carbide basis which show resistance blade tipping Characteristic and the abrasion resistance where the hard enveloping layer is superior in

摘要

PROBLEM TO BE SOLVED: To provide a surface-coated cutting tool having a hard coat layer exhibiting superior chipping resistance and wear resistance during high-speed cutting, and its manufacturing method.;SOLUTION: A Ti compound layer or a (Ti, Al)N layer is formed on a surface of a tool base as a lower layer. A lower intermediate layer made of YSZ (yttria stabilized zirconia), an upper intermediate layer made of one of Cr and Al oxide solid solution, Cr oxide and Ce oxide, and an upper layer made of one of κ-Al₂O₃, γ-Al₂O₃ and θ-Al₂O₃ are formed on the lower layer by a dynamic aurora PLD method to improve chipping resistance and wear resistance of the surface-coated cutting tool.;COPYRIGHT: (C)2009,JPO&INPIT