Cemented carbide tool and method of making

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C428S469000, C428S472000, C428S698000, C428S699000, C428S307700, C428S318400, C051S307000, C051S309000

Reexamination Certificate

active

06998173

ABSTRACT:
A coated cemented carbide tool, and a method for making the same, wherein the as-sintered substrate is formed by sintering in an atmosphere having at least a partial pressure and for a part of the time a nitrogen partial pressure.

REFERENCES:
patent: 2036245 (1936-04-01), Walter
patent: 2612442 (1952-09-01), Goetzel
patent: 3147542 (1964-09-01), Boeckeler
patent: 3564683 (1971-02-01), Schedler et al.
patent: 3640689 (1972-02-01), Glaski et al.
patent: 3684585 (1972-08-01), Stroup et al.
patent: 3717496 (1973-02-01), Kieffer et al.
patent: 3874900 (1975-04-01), Post et al.
patent: RE28485 (1975-07-01), Rix et al.
patent: 3971656 (1976-07-01), Rudy
patent: 3999954 (1976-12-01), Kolaska et al.
patent: 4018631 (1977-04-01), Hale
patent: 4035541 (1977-07-01), Smith et al.
patent: 4049876 (1977-09-01), Yamamoto et al.
patent: 4052530 (1977-10-01), Fonzi
patent: 4063938 (1977-12-01), Weissman
patent: 4101703 (1978-07-01), Schintlmeister
patent: 4150195 (1979-04-01), Tobioka et al.
patent: 4268569 (1981-05-01), Hale
patent: 4276095 (1981-06-01), Kolaska et al.
patent: 4277283 (1981-07-01), Tobioka et al.
patent: 4279651 (1981-07-01), Fujimori et al.
patent: 4282289 (1981-08-01), Kullander et al.
patent: 4334928 (1982-06-01), Hara et al.
patent: 4442169 (1984-04-01), Graham
patent: 4463062 (1984-07-01), Hale
patent: 4497874 (1985-02-01), Hale
patent: 4548786 (1985-10-01), Yohe
patent: 4610931 (1986-09-01), Nemeth et al.
patent: 4649084 (1987-03-01), Hale et al.
patent: 4812370 (1989-03-01), Okada et al.
patent: 4830930 (1989-05-01), Taniguchi et al.
patent: 4843039 (1989-06-01), Akesson et al.
patent: 5066553 (1991-11-01), Yoshimura et al.
patent: 5135801 (1992-08-01), Nystrom et al.
patent: 5181953 (1993-01-01), Nakano et al.
patent: RE34180 (1993-02-01), Nemeth et al.
patent: 5250367 (1993-10-01), Santhanam et al.
patent: 5283030 (1994-02-01), Nakano et al.
patent: 5310605 (1994-05-01), Baldoni, II et al.
patent: 5370944 (1994-12-01), Omori et al.
patent: 5451469 (1995-09-01), Gustafson et al.
patent: 5484468 (1996-01-01), Ostlund et al.
patent: 5503925 (1996-04-01), Nakano et al.
patent: 5549980 (1996-08-01), Ostlund et al.
patent: 5585176 (1996-12-01), Grab et al.
patent: 5643658 (1997-07-01), Uchino et al.
patent: 5648119 (1997-07-01), Grab et al.
patent: 5649279 (1997-07-01), Gustafson et al.
patent: 5709907 (1998-01-01), Battaglia et al.
patent: 5722803 (1998-03-01), Battaglia et al.
patent: 5729823 (1998-03-01), Gustafson et al.
patent: 5761593 (1998-06-01), Ostlund et al.
patent: 5858480 (1999-01-01), Iio et al.
patent: 5914181 (1999-06-01), Uchino et al.
patent: 5955186 (1999-09-01), Grab
patent: 6110603 (2000-08-01), Chen et al.
patent: 6299992 (2001-10-01), Lindskog et al.
patent: 6468680 (2002-10-01), Waldenstrom et al.
patent: 0127416 (1984-12-01), None
patent: 0200991 (1986-11-01), None
patent: 0337696 (1989-10-01), None
patent: 0560212 (1993-09-01), None
patent: 9317140 (1993-09-01), None
patent: 0569696 (1993-11-01), None
patent: 0603143 (1994-06-01), None
patent: 0682580 (1995-11-01), None
patent: 0737756 (1996-10-01), None
patent: 52110209 (1977-09-01), None
patent: 52156303 (1979-07-01), None
patent: 56009365 (1981-01-01), None
patent: 03082766 (1991-04-01), None
patent: 03094062 (1991-04-01), None
patent: 9802394 (1998-01-01), None
patent: 9802395 (1998-01-01), None
patent: 9802396 (1998-01-01), None
patent: 9810119 (1998-03-01), None
patent: 9816664 (1998-04-01), None
patent: 9816665 (1998-04-01), None
patent: 0003047 (2000-01-01), None
English abstract of Japanese Patent Application JP5171442A (Jul. 1993[1 page].
English Abstract of Japanese Patent Application JP56020141A (Feb. 1981) [1 page].
English Abstract of Japanese Patent Application JP3090575A (Apr. 1991) [1 page].
English Abstract of Japanese Patent Application JP309406A (Apr. 1991) [1 page].
Suzuki et al. The β Free Layer Formed Near the Surface of Sintered WC-β-Co Alloy Containing Nitrogen, Nippan Kinzoku Gakkaishi, vol. 45 No. 1 pp. 95-99 (1981).
Taniguchi et al., Properties of Nitrogen Contained Cemented Carbides with a Small Amount of Binder Metal, R&MH pp. 171-176 (Sep. 1986).
Suzuki et al., The βFree Layer Formed Near the Surface of Vacuum Sintered WC-β-Co Alloys Containing Nitrogen, Transactions of the Japan Institute of Metals. vol. 22, No. 11 (1981) pp 758-764.
Doi et al. Thermodynamic Evaluation of Equilibrium Nitrogen Pressure and WC Separation in Ti-W-C-N System Carbonitride, Proceedings of the 11th International Plansee Seminar, Reutte Austria (1985) pp 825-843.
Nemeth et al., The Microstructural Features and Cutting Performance of the High Edge Strength Kennametal Grade KC850, Proceedings of the 10thInternational Plansee Seminar, Ruette Austria (1981) pp. 613-627.
Yohe, The Development of Cubic-Carbide Free Surfe Layers in Cemented Carbides without Nitrogen, Proceedings of 13thInternational Plansee Seminar, Reutte, Austria (1993) pp. 151-168.
Gustafson et al., Binder-Phase Enrichment by Dissolution of Cubic Carbides, Int. J. Refractory Metals and Hard Materials. 12 (1993-1994) pp. 129-136.
Schwarzkopf et al., Kinetics of Compositional Modification of (W, Ti)C-WC-Co Alloy Surfaces. Materials Science and Engineering A105/106 (1988) pp. 225-231.
Yohe, The Development of Cubic Carbide Free Surface Layers in Cemented Carbides without Nitrogen, Int J. of Refractory & Hard Materials 12 (1993-1994) pp. 137-144.
Kobori et al. Binder Enriched Layer Formed Near the Surface of cemented carbide, Funtai oyobi Funtai Yakin vol. 34 No. 3 pp. 129-132 (1987).
Santhanam et al., Cemented Carbide, Metals Handbook 16 9thEdition, Machining (1989) pp. 71-89.
Schwarzkopf et al., Nitrogenated Hardmetals for Producing Toughness-increasing Surface zones, 12thInternational Plansee Seminar, Ruette Austria (1989) pp. 803-831.
International Search Report of Nov. 30, 2001 in PCT/US01/08933.
Communication mailed Feb. 27, 2003 regarding K1753EP Application No. 01 918 869.7-2122.

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

Cemented carbide tool and method of making does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cemented carbide tool and method of making, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cemented carbide tool and method of making will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3666167

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