CUTTING TOOL

WIPO Patent Application WO/2012/144299

A1

[Problem] To provide a cutting tool provided with a coating layer capable of optimizing cutting performance on a cutting face and a major flank. [Solution] A cutting tool (1) provided with a coating layer (6) formed by alternately repeatedly stacking, on a surface of a base (2), A layers (7) made of TiN and B layers (8) made of Ti1-aMa(C1-xNx) (where M is made of at least one selected among the elements in Group 4, 5, 6 metal of the periodic table except Ti, and among Al, Si and Y, and (a) and (x) satisfy 0.1 ≤ a ≤ 0.9 and 0 ≤ x ≤ 1), wherein the ratio (trA/trB) of the thickness of the A layers (7) relative to the B layers (8) in the coating layer (6) on a cutting face (3) is larger than the ratio (tfA/tfB) of the thickness of the A layers (7) relative to the B layers (8) in the coating layer (6) on a major flank (4).

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WO/2013/150610	SINTERED CUBIC BORON NITRIDE TOOL

ISHIKAWA KAZUNORI (JP)

PCT/JP2012/057898

October 26, 2012

March 27, 2012

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KYOCERA CORP (JP)
ISHIKAWA KAZUNORI (JP)

B23B27/14

JP2010188512A	2010-09-02
JP2007253271A	2007-10-04
JP2008296290A	2008-12-11
JP2008264975A	2008-11-06

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