SURFACE-COATED TITANIUM CARBONITRIDE-BASED CERMET CUTTING TOOL HAVING EXCELLENT CHIPPING RESISTANCE

摘要

A surface-coated titanium carbonitride-based cermet cutting tool is a surface-coated TiCN-based cermet cutting tool in which a Ti compound layer that is a hard coating layer is deposited as a first layer on the surface of a TiCN-based cermet body containing W and Mo, and a Mo-enriched layer having an average thickness of 0.5 to 10 nm is formed at an interface between a TiCN phase of the body and the hard coating layer.

主权项

1. A surface-coated TiCN-based cermet cutting tool, comprising:
a body made of a TiCN-based cermet containing a TiCN phase as a hard phase component and containing 1 to 10 at % of each of W and Mo; and a hard coating layer which is a first layer deposited on a surface of the body made of the TiCN-based cermet and is formed of any of a Ti carbide, a Ti nitride, a Ti carbonitride, a Ti oxycarbide, and a Ti oxycarbonitride, wherein a Mo-enriched layer having an average thickness of 0.5 to 10 nm is formed at an interface between the TiCN phase of the body and the hard coating layer.