Surface coated cutting tool

Details Surface coated cutting tool Surface coated cutting tool

2011-08-30

2011-08-30

Speer, Timothy M (Department: 1784)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S702000, C051S309000, C407S119000, C408S0010BD

Reexamination Certificate

active

08007929

ABSTRACT:
A surface coated cutting tool having, on a surface of a substrate, a hard coating layer including at least an aluminum oxide layer, the surface having a rake face on a main face thereof and a flank on a side face thereof, wherein, when a value calculated by the following equation (I) is a texture coefficient TC of the (HKL) plane of the aluminum oxide layer, a ratio of a texture coefficient TCRon the rake face to a texture coefficient TCFon the flank, TCF/TCR, is in a range of 0.3 to 0.95.TC=I⁡(HKL)/IO⁡(HKL)1/6⁢⁢∑[I⁡(hkl)/I0⁡(hkl)](I)where I(HKL), I0(HKL) and Σ[I(hkl)/I0(hkl)] are as described in the specification.

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patent: WO 99/52662 (1999-10-01), None

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