Title:
SURFACE-COATED CUTTING TOOL HAVING HARD COATING LAYER EXHIBITING EXCELLENT CHIPPING RESISTANCE AND WEAR RESISTANCE
Document Type and Number:
WIPO Patent Application WO/2018/181123
Kind Code:
A1
Abstract:
Provided is a surface-coated cutting tool exhibiting excellent chipping resistance and wear resistance when used for high-speed high-feed intermittent cutting of alloy steels and the like. The surface-coated cutting tool is a cutting tool having a hard coating containing (Ti1-x―yAlxMey)(CzN1-z) (Me is at least one among Zr, V, and Cr, 0.60≤x＜0.95, 0.005≤y≤0.100, 0.60＜x＋y≤0.95, and 0.0000≤z≤0.0050) on the surface of a tool base, wherein the average content s of Cl in the total amount of atoms constituting a TiAlMeCN phase satisfies 0.0001≤s≤0.0040, and the absolute value ΔA of the difference between A(111) and A(200), which are defined as A(111)=31/2d(111) and A(200)=2d(200) from the calculation of interplanar spacings d(111) and d(200) of NaCl-type structured grains in the TiAlMeCN layer, satisfies 0.007Å≤ΔA≤0.050Å.
Inventors:
SATO KENICHI (JP)
YANAGISAWA KOUSUKE (JP)
ISHIGAKI TAKUYA (JP)
NISHIDA SHIN (JP)
YANAGISAWA KOUSUKE (JP)
ISHIGAKI TAKUYA (JP)
NISHIDA SHIN (JP)
Application Number:
PCT/JP2018/012025
Publication Date:
October 04, 2018
Filing Date:
March 26, 2018
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
B23B27/14; B23C5/16; C23C16/34; C23C16/36
Foreign References:
| JP2010125539A | 2010-06-10 | |||
| JP2012201955A | 2012-10-22 | |||
| JP2016068252A | 2016-05-09 | |||
| JP2006082207A | 2006-03-30 | |||
| JP2008238344A | 2008-10-09 |
Other References:
TODT ET AL.: "Superior oxidation resistance, mechanical properties and residual stresses of an Al-rich nanolamellar Ti0.05A10.95N coating prepared by CVD", SURFACE & COATINGS TECHNOLOGY, vol. 258, 11 July 2014 (2014-07-11), pages 1119 - 1127, XP029020164
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