Coated cutting tool and method for producing the same

Details Coated cutting tool and method for producing the same Coated cutting tool and method for producing the same

2011-03-15

2011-03-15

Turner, Archene (Department: 1784)

Stock material or miscellaneous articles

Composite

Of inorganic material

C051S307000, C051S309000, C428S336000, C428S701000, C428S702000

Reexamination Certificate

active

07906230

ABSTRACT:
Provided are a coated cutting tool having excellent wear resistance and excellent resistance to chipping as well as excellent fracture resistance such that the coated cutting tool is unlikely to cause backward movement of the tool edge position due to wear or chipping, and a method for producing the same.A coated cutting tool comprising a base material having a surface coated with a coating film, wherein the coating film comprises at least one layer comprised of a TiCN columnar crystal film, wherein the TiCN columnar crystal film has an average grain size of 0.05 to 0.5 μm, as measured in the direction parallel to the surface of the base material, and exhibits an X-ray diffraction pattern having a peak at a diffraction angle 2θ in the range of from 121.5 to 122.6° wherein the peak is ascribed to the (422) crystal facet of the TiCN columnar crystal as measured using CuKα radiation.

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