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Patents - HARDMETALCategory list | January 2007 | | HARDMETAL |
WO 2006/104004 A1 (10/03/2006) Kyocera Corporation
Fujino A, Tokunaga T.
SUPER HARD ALLOY AND CUTTING TOOL
A super hard alloy contains 5-10wt% of cobalt and/or nickel, 0-10wt% of a group 4, 5 or 6 carbide (excluding tungsten carbide), nitride and carbonitride and the balance of tungsten carbide. The hard phases are mainly composed of tungsten carbide particles and ?-particles of carbides, nitrides or carbonitrides bonded together by bonding phases mainly composed of cobalt and/or nickel.
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WO 2006/081401 A2 (08/03/2006) Questek Innovations Llc
Wright J.A, Jung J-W.
MARTENSITIC STAINLESS STRENGTHENED BY NI3TI-PHASE PRECIPITATION
A precipitation-hardened stainless maraging steel which exhibits a combination of strength, toughness, and corrosion resistance comprises by weight about: 8-15% Cr, 2-15% Co 7-14% Ni, and <0.7% Al, <0.4% Cu, 0.5-2.5% Mo, 0.4-0.75% Ti, up to about 0.5% tungsten (W), and up to about 120wppm carbon (C), the balance essentially iron (Fe) and incidental elements.
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WO 2006/069614 A2 (07/06/2006) Umicore
Aminian H, Yuan D.
COMPOSITE POWDER FOR HARDMETALS
A composite powder suitable for hardmetal cutting tools and wear resistance applications comprises a hard particulate phase chosen from a range of metallic carbides, nitrides, carbonitrides and the like, onto which hard phase is deposited a coating of cobalt or nickel, or a mixture of cobalt and nickel.
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| July 2006 |
WO 2006/023222 A1 (03/02/2006) TDY Industries, Inc.
Festeau G. Fang XD. Wills D.J.
PVD COATED RUTHENIUM FEATURED CUTTING TOOLS
PVD coated tungsten carbide (WC) based cemented cutting inserts with ruthenium (Ru) as a key chemical element, in the cobalt (Co)-based binder phase, particularly useful for machining today's mold & die materials. In the Ru-Co mixed binder phase in the tungsten carbide substrate, the ratio of Ru/Co is at least 3%, by weight.
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WO 2005/033348 A3 (01/19/2006) Kennametal Inc.
Banerjee D.
ELECTRIC DISCHARGE MACHINABLE CEMENTED CARBIDE BODY
A2 published (04/14/05)
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WO 2005/ 106183 A1 (11/10/2005) TDY Industries, Inc., Backer Hughes Incorporated
Mirchandani P.K. Eason J.W. Oakes J.J. Westhoff J.C. Collins G.B. Cladwell S.G. Stevens J.H. Mosco A.J.
EARTH-BORING BITS
A bit body for an earth-boring bit consists of hard particles containing carbide, nitride, boride or oxide and solid solutions thereof, and a binder, comprising cobalt, nickel, or iron, and, optionally a transition metal ( Ti, Cr, V, etc) carbide melting point reducing component containing 30-60 wt%, boron, up to 10 wt% Si, up to 20 wt% Cr.
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| February 2005 |
WO 2005/033348 A2 (04/14/05) Kennametal Inc.
"Banerjee, D."
ELECTRIC DISCHARGE MACHINABLE CEMENTED CARBIDE BODY
"A cemented carbide blank for electric discharge machining includes a carbide phase containing 77.7-93.6 wt% tungsten carbide (and optionally vanadium carbide), together with about 0.3-1.5 wt% chromium, 8-17 wt% cobalt, 0-5 wt% nickel, and between about 0.1-1.0 wt% molybdenum."
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WO 2004/063408 A3 (11/11/04) Ceratizit Horb GmbH
"Westermann, H."
HARD METAL MOULDED ITEM
A2 published (29/07/04)
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