Coated cutting tool insert for milling

Details Coated cutting tool insert for milling Coated cutting tool insert for milling

2008-10-09

2011-11-08

Turner, Archene (Department: 1784)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

C051S307000, C051S309000, C428S336000, C428S469000, C428S698000, C428S701000, C428S702000

Reexamination Certificate

active

08053064

ABSTRACT:
The present invention relates to a coated cemented carbide insert (cutting tool), particularly useful for wet or dry milling of steels at high cutting speeds, milling of hardened steels, and high feed copy milling of tool steels. The cutting tool insert is characterised by a cemented carbide body comprising WC, NbC, and TaC, a W-alloyed Co binder phase, and a coating comprising an innermost layer of TiCxNyOzwith equiaxed grains, a layer of TiCxNyOzwith columnar grains and a layer of α-Al2O3.

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