Wear resistant hard coating for a workpiece and method for...

Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C051S307000, C051S309000, C204S192100, C407S119000, C428S216000, C428S336000, C428S469000, C428S697000, C428S698000, C428S699000

Reexamination Certificate

active

07960015

ABSTRACT:
The present invention provides an optimized hard coating and a workpiece, especially a cutting tool coated with a hard coating to increase tooling performance with difficult to machine materials such as high speed steels, titanium alloys, nickel alloys, austenitic steels and especially hard materials like hardened tool steel having a hardness of higher 50, preferably of higher 55 HRC. This is achieved by a workpiece coated with a wear resistant multilayered comprising at least a first supporting layer and a second nanocrystalline layer, whereas the first layer comprises a coating material of the following composition (TiaAl1-a)N1-x-yCxOywith 0.4<a<0.6, and 0≦x and y<0.3, or (AlbCr1-b)N1-x-yCxOywith 0.5<b<0.7, and 0≦x and y<0.3. The second layer comprises a coating material of the following composition (Al1-c-d-eCrcSidMe)N1-x-yCxOywhereas M stands for at least one element of the transition metals of group 4, 5, 6 of the periodic system except Chromium and 0.2<c≦0.35, 0<d≦0.20, 0<e≦0.04.

REFERENCES:
patent: 6586122 (2003-07-01), Ishikawa et al.
patent: 7226670 (2007-06-01), Derflinger et al.
patent: 7348074 (2008-03-01), Derflinger
patent: 7410707 (2008-08-01), Fukui et al.
patent: 7504149 (2009-03-01), Toihara et al.
patent: 7510761 (2009-03-01), Kondo et al.
patent: 2008/0318062 (2008-12-01), Endrino et al.
patent: 1 174 528 (2002-01-01), None
patent: 1 710 326 (2006-10-01), None
patent: WO2006/005217 (2006-01-01), None
patent: WO2006/084404 (2006-08-01), None
International Search Report of PCT/EP2008/052572.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Wear resistant hard coating for a workpiece and method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wear resistant hard coating for a workpiece and method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wear resistant hard coating for a workpiece and method for... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2695506

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.