Surface coated tool and method of working cutting object

Details Surface coated tool and method of working cutting object Surface coated tool and method of working cutting object

2007-12-17

2011-11-22

Turner, Archene (Department: 1784)

Stock material or miscellaneous articles

Composite

Of inorganic material

C051S307000, C051S309000, C407S119000, C428S325000, C428S698000, C428S699000

Reexamination Certificate

active

08062776

ABSTRACT:
A surface coated tool comprises a substrate and a coating layer superimposed on the surface of the substrate and containing Ti and W in the form of nitride or carbonitride. The coating layer comprises a matrix and dispersed particles dispersed into the matrix. The W content of the dispersed particles is larger than the W content of the matrix, and a difference in the W content between the matrix and the dispersed particles is larger than a difference in other ingredient content. A cutting tool consisting of the surface coated tool and having a cutting edge is prepared, and the cutting edge of the cutting tool is brought into contact with a cutting object, and the cutting object is cut by the cutting tool.

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