Coated insert and method of making same

Details Coated insert and method of making same Coated insert and method of making same

2005-07-13

2008-12-30

Turner, Archene (Department: 1794)

Abrasive tool making process, material, or composition

With inorganic material

C051S309000, C156S089110, C156S089160, C407S119000, C427S249100, C427S255700, C427S255110, C427S255280, C427S255290, C427S255391, C427S348000, C427S368000, C427S419200, C427S419700, C428S212000, C428S216000, C428S336000, C428S698000, C428S701000, C428S702000

Reexamination Certificate

active

07470296

ABSTRACT:
A cutting tool insert particularly for turning of steel comprising a body and a coating with a first (innermost) layer system of at least two layers of TiCxNyOzwith x+y+z≦1 with a total thickness of from about 0.7 to about 4.5 μm, a second layer system to a large extent consisting of Al2O3and an outermost layer system comprising one or several layers in sequence of TiCxNy(x+y≦1) with individual thicknesses of greater than about 0.15 to about 0.8 μm and a layer with Al2O3with a thickness greater than about 0.1 to about 0.4 μm with a total thickness of the outermost layer system thinner than about 2.5 μm and a total thickness of the coating in the range of from about 2.0 to about 12.0 μm.

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