SURFACE COATED CUTTING TOOL

摘要

PROBLEM TO BE SOLVED: To provide a surface coated cutting tool improved in strength and also improved in adhesion ability between a base material and the coating layer. SOLUTION: The surface coated cutting tool comprises the base material made of cemented carbide, and one or more coating layers for covering the base material. The base material has a surface layer which is mainly made of composite carbide of W and Co, and has a thickness of 0.005μm to less than 0.1μm. COPYRIGHT: (C)2009,JPO&INPIT