Coated insert

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...

Reexamination Certificate

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C051S307000, C051S309000, C428S216000, C428S336000, C428S697000, C428S701000, C428S702000

Reexamination Certificate

active

07968182

ABSTRACT:
The present invention relates to cutting tool insert for metal machining on which at least on the functioning parts of the surface thereof a thin, adherent, hard and wear resistant coating is applied. The coating comprises a metal oxide/oxide composite layer consisting of two components with a grain size of from about 1 to about 100 nm. The oxide layer is under a compressive stress.

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