Title:
CUTTING TOOL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/065677
Kind Code:
A1
Abstract:
Provided is a cutting tool having both good adhesion resistance and smoothness and a manufacturing method therefor. The cutting tool is constituted by a composite material including a ceramic phase and a metal phase, wherein a cutting edge portion of the cutting tool has a cutting edge ridgeline and a cutting edge constituting surface which forms the cutting edge ridgeline. The cutting edge constituting surface has a surface portion in which the ceramic phase protrudes from the composite material layer including the ceramic phase and the metal phase, the ceramic phase is present intermittently, and the metal phase is absent. The surface roughness of the surface portion is represented by an arithmetic mean roughness Ra ≤ 0.1 μm and a skewness Rsk ≤ -0.01.
Inventors:
KOSEKI SHUHO (JP)
SHINNO DAIKI (JP)
YOSHINO KATSUO (JP)
UEDA SEIJI (JP)
SHINNO DAIKI (JP)
YOSHINO KATSUO (JP)
UEDA SEIJI (JP)
Application Number:
PCT/JP2018/035567
Publication Date:
April 04, 2019
Filing Date:
September 26, 2018
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
B23D19/00; B23P15/40; C22C29/02; C22C29/12; C22C29/14; C22C29/16
Foreign References:
| JP2014210314A | 2014-11-13 | |||
| JP2007313636A | 2007-12-06 | |||
| JP2004291137A | 2004-10-21 | |||
| JP2002086387A | 2002-03-26 | |||
| JP2009178774A | 2009-08-13 | |||
| JP2014087895A | 2014-05-15 | |||
| US20120276826A1 | 2012-11-01 |
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