Surface-coated cermet cutting tool with a hard coating layer...

Details Surface-coated cermet cutting tool with a hard coating layer... Surface-coated cermet cutting tool with a hard coating layer...

2007-10-02

2007-10-02

Turner, Archene (Department: 1775)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S216000, C428S336000, C428S697000, C428S698000, C428S701000, C428S702000

Reexamination Certificate

active

10999222

ABSTRACT:
A surface-coated cermet cutting tool with a hard-coating layer having excellent chipping resistance. The hard coating layer is formed on a surface of a tool substrate that constitutes the surface-coated cermet cutting tool. The hard coating layer includes(a) as the lower layer, a titanium compound layer having at least one or two of a titanium carbide layer, a titanium nitride layer, a titanium carbonitride layer, a titanium carboxide layer and a titanium oxycarbonitride layer, and (b) as the upper layer, a heat-transformed α-type Al—Zr oxide layer formed by carrying out a heat-transforming treatment in a state that a titanium oxide layer satisfying the composition formula: TiOY, ¥ The heat-transformed α-type Al—Zr oxide layer is chemically deposited on a surface of an Al—Zr oxide layer having a κ-type or θ-type crystal structure and satisfying the composition formula: (Al1−XZrX)2O3to transform the crystal structure of the Al—Zr oxide layer having the κ-type or θ-type crystal structure into an α-type crystal structure.

REFERENCES:
patent: 4180400 (1979-12-01), Smith et al.
patent: 4540596 (1985-09-01), Nimmagadda
patent: 4701384 (1987-10-01), Sarin et al.
patent: 5310607 (1994-05-01), Schulz et al.
patent: 6426137 (2002-07-01), Oshika et al.
patent: 6586122 (2003-07-01), Ishikawa et al.
patent: 6660371 (2003-12-01), Westphal et al.
patent: 6726987 (2004-04-01), Kathrein et al.
patent: 6733874 (2004-05-01), Ueda et al.
patent: 6767627 (2004-07-01), Morikawa et al.
patent: 6835446 (2004-12-01), Ueda et al.
patent: 6855405 (2005-02-01), Okada et al.
patent: 2004/0224159 (2004-11-01), Oshika et al.
patent: 0403461 (1990-12-01), None
patent: 0727510 (1996-08-01), None
patent: 1 247 789 (2002-10-01), None
patent: 1 288 335 (2003-03-01), None
Patent Abstracts of Japan for JP06-031503 published Feb. 8, 1994.
Patent Abstracts of Japan for JP06-008010 published Jan. 18, 1994.
M. Kathrein et al., “Doped CVD A1203 coatings for high performance cutting tools”, Surface and Coatings Technology, vol. 163, Jan. 1, 2003, pp. 181-188, XP002362564.
A. A. Layyous et al., “A1203 coated cemented carbides: optimization structure, number of layers and type of Interlayer”, Surface and Coatings Technology, vol. 56, 1992, pp. 89-95, XP002362565.

Affiliated with

Also associated with

Rating

Surface-coated cermet cutting tool with a hard coating layer... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surface-coated cermet cutting tool with a hard coating layer..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface-coated cermet cutting tool with a hard coating layer... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3857677