Enhanced A12O3-Ti(C,N) multi-coating deposited at low temperature
AssigneeSeco Tools AB
InventorSakari Ruppi
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Abstract
A coated body having a multi-layer of κ-Al2O3 and or γ-Al2O3 or TiN applied by MTCVD (Medium Temperature Chemical Vapor Deposition) is disclosed. The multi-layers can be interspersed with layers of Ti(C,N) which can also be applied by MTCVD. The body which is coated is preferably a cemented carbide, cermet, ceramic and/or high speed steel and may be used as a metal cutting insert.
Claims16
A coated body wherein the coating comprises a multi-layer of γ-Al2O3.
A coated body wherein the coating comprises a multi-layer of κ-Al2O3 applied by a chemical vapor deposition at a temperature of from 700 to 900° C.
A coated body wherein the coating comprises a multi-layer of κ-Al2O3 and γ-Al2O3, each applied by a chemical vapor deposition at a temperature of from 700 to 900° C.
A coated body wherein the coating comprises a multi-layer of κ-Al2O3 and/or γ-Al2O3 layers interspersed with layers of Ti(C,N) on a layer of Ti(C,N).
A coated body wherein the coated comprises a multi-layer of κ-Al2O3 and/or γ-Al2O3 layers interspersed with layers of Ti(C,N) on a layer of Ti(C,N) and with a layer of Ti(C,N) atop of the said multi-layer.
Dependencies are inferred from the claim text.