Coated cutting tool insert

Stock material or miscellaneous articles – Composite – Of inorganic material

Reexamination Certificate

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Details

C051S307000, C051S309000, C407S119000, C428S216000, C428S325000, C428S336000, C428S472000, C428S701000, C428S702000

Reexamination Certificate

active

08043729

ABSTRACT:
The present invention discloses a coated cutting tool insert particularly useful for dry and wet machining, preferably milling, in low and medium alloyed steels, stainless steels, with or without raw surface zones under severe conditions such as vibrations, long overhang and recutting of chips. The insert is characterized by WC—Co cemented carbide with a W and Cr alloyed Co-binder phase and a coating including at least three TiCxNyOzlayers and a top layer at least on the rake face of a smooth α-Al2O3.

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Partial Translation of Israeli Patent Office Action for Israeli patent application No. 180060.

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