Title:
A cutting insertion and a manufacturing method for the same
Document Type and Number:
Japanese Patent JP6139531
Kind Code:
B2
Abstract:
Cutting insert made of hard metal, cermet or ceramic substrate body with multi-layer coating applied thereto by CVD methods. The coating has a total thickness of 5 to 40 μm and, starting from the substrate surface, has one or more hard material layers, an alpha aluminum oxide (α-Al2O3) layer of a layer thickness of 1 to 20 μm and optionally at least portion-wise over the α-Al2O3 layer one or more further hard material layers as decorative or wear recognition layers. The α-Al2O3 layer has a crystallographic preferential orientation characterized by a texture coefficient TC (0 0 12)≧5 for the (0 0 12) growth direction. The α-Al2O3 layer has an inherent stress in the region of 0 to +300 MPas, and the substrate within a region of 0 to 10 μm from the substrate surface has an inherent stress minimum in the region of −2000 to −400 MPas.
Inventors:
Dirk Steens
Zakari Ruppi
Thomas Foolman
Zakari Ruppi
Thomas Foolman
Application Number:
JP2014530257A
Publication Date:
May 31, 2017
Filing Date:
September 17, 2012
Export Citation:
Assignee:
Walter Akchen Gezel Shaft
International Classes:
B23B27/14; B23P15/28; B24C1/10; C23C16/30; C23C16/40; C23C16/56
Domestic Patent References:
| JP2009028894A | ||||
| JP2007125686A | ||||
| JP2008246664A | ||||
| JP2007331102A |
Foreign References:
| US20110045283 | ||||
| WO2011055813A1 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Masatoshi Takahashi
Satoshi Deno
Naori Kota
Naohisa Akashi
Takashi Ishida
Tetsuji Koga
Masatoshi Takahashi
Satoshi Deno
Naori Kota
Naohisa Akashi