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Title:
SURFACE-COATED CUTTING TOOL HAVING HARD COATING LAYER CAPABLE OF EXHIBITING EXCELLENT LUBRICATING PERFORMANCE AND WEAR RESISTANCE DURING HIGH-SPEED CUTTING
Document Type and Number:
Japanese Patent JP2009101475
Kind Code:
A
Abstract:

To provide a surface-coated cutting tool having a hard coating layer capable of exhibiting excellent lubricating performance and wear resistance during the high-speed cutting.

In this surface-coated cutting tool, the hard coating layer is vapor-deposited on the surface of a tool base formed of a tungsten carbide-based sintered alloy or a titanium carbonitride based cermet. The hard coating layer vapor-deposited is a (Cr, Al, M) N layer (where M is one or more elements selected from Zr, Y, V, W, Nb, Mo, and Ti). The (Cr, Al, M) N layer is an alternately laminated structure of thin layers A in a cubic structure and thin layers B in a cubic structure and an hexagonal structure which are mixed therein.


Inventors:
OGAMI TSUTOMU
TANAKA YUSUKE
SATO KAZUNORI
MASUNO SATOYUKI
SHIKADA SHINICHI
KAZAMI DAISUKE
WADA YASUNORI
Application Number:
JP2007276317A
Publication Date:
May 14, 2009
Filing Date:
October 24, 2007
Export Citation:
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Assignee:
MITSUBISHI MATERIALS CORP
International Classes:
B23B27/14; B23B51/00; B23C5/16; C23C14/06
Attorney, Agent or Firm:
Kazuo Tomita
Kutaro Kamoi
Kageyama Shuichi