Coated cutting tool
AssigneeAB Sandvik Coromant
InventorsKatherine CALAMBA, Lars JOHNSON, Ebba SAIKOFF
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Abstract
The present invention relates to a coated cutting tool including a substrate and a coating. The coating has, from about 0.5 to about 10 μm, a nano-multilayer of alternating nanolayers of a first nanolayer type of Ti1-xAlxN, wherein 0.45≤x<0.67, a second nanolayer type of Cr1-yAlyN, wherein 0.60≤y≤0.80, and a third nanolayer type of Ti1-zSizN, wherein 0.14≤z≤0.25. An average nanolayer thickness of each of the nanolayer types Ti1-xAlxN, Cr1-yAlyN and Ti1-zSizN in the nano-multilayer is ≥1 nm but <3 nm.
Claims15
A coated cutting tool comprising a substrate and a coating, wherein the coating includes a from about 0.5 to about 10 μm nano-multilayer of alternating nanolayers of a first nanolayer type being Ti1-xAlxN, wherein 0.45≤x<0.67, a second nanolayer type being Cr1-yAlyN, wherein 0.60≤y≤0.80, and a third nanolayer type being Ti1-zSizN, wherein 0.14≤z≤0.25, an average nanolayer thickness of each of the nanolayer types Ti1-xAlxN, Cr1-yAlyN and Ti1-zSizN in the nano-multilayer is being ≥1 nm, but <3 nm.
Dependencies are inferred from the claim text.