Oxide coated cutting tool

摘要

A coated cutting tool body is coated with one or several refractory layers of which at least one layer is a dense, fine-grained layer of alpha -Al2O3 preferably textured in the (012) direction. The coated tool according to the present invention exhibits excellent surface finish and shows much improved wear and toughness properties compared to prior art objects when used for machining steel, cast iron and, particularly, when machining nodular cast iron.