Coated cutting tool and manufacturing method thereof

Details Coated cutting tool and manufacturing method thereof Coated cutting tool and manufacturing method thereof

2011-03-08

2011-03-08

Turner, Archene (Department: 1784)

Stock material or miscellaneous articles

Composite

Of inorganic material

C051S307000, C051S309000, C204S192100, C204S192150, C204S192160, C428S698000, C428S699000, C428S216000, C428S336000

Reexamination Certificate

active

07901796

ABSTRACT:
A coated cutting tool and its manufacturing method are provided. The coated cutting tool includes a base material and a coating layer formed on a surface of the base material. The coating layer includes an alternate layer having at least one layer of each of an A layer and a B layer stacked one on another alternately. The A layer is made of a nitride containing Al and Cr, and when the total number of metal atoms constituting the A layer is represented as 1, a ratio of the number of Cr atoms is more than 0 and not more than 0.4. The B layer is made of a nitride containing Ti and Al, and when the total number of metal atoms constituting the B layer is represented as 1, a ratio of the number of Al atoms is more than 0 and not more than 0.7.

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Chinese Office Action, with English Translation, issued in Chinese Patent Application No. CN 200580045233.2, dated Jan. 9, 2009.

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