Cemented carbide insert for turning, milling and drilling

Details Cemented carbide insert for turning, milling and drilling Cemented carbide insert for turning, milling and drilling

2008-01-22

2008-01-22

Turner, Archene (Department: 1775)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

C428S323000, C428S697000, C428S698000, C428S701000, C428S702000, C051S307000, C051S309000

Reissue Patent

active

11449008

ABSTRACT:
There is disclosed a cemented carbide insert with excellent properties for machining of steels and stainless steels. The cemented carbide comprises WC and 4-25% Co. The WC-grains have an average grain size in the range 0.2-3.5 μm and a narrow grain size distribution in the range 0-4.5 μm.According to the method of the invention a cemented carbide cutting tool insert is made by mixing powders of WC, TiC, TaC and/or NbC, binder metal and pressing agent, drying preferably by spray drying, pressing to inserts and sintering. The method characterised inthat a deagglomerated WC-powder with a narrow grain size distribution is used,that the powders of TiC, TaC and/or NbC are deagglomerated andthat the mixing is wet mixing with no change in grain size or grain size distribution.

REFERENCES:
patent: 3660050 (1972-05-01), Iler et al.
patent: 4923512 (1990-05-01), Timm et al.
patent: 5068149 (1991-11-01), Shimada et al.
patent: 5151247 (1992-09-01), Haglund et al.
patent: 5288676 (1994-02-01), Shimada et al.
patent: 5334561 (1994-08-01), Matsui et al.
patent: 5434112 (1995-07-01), Matsui et al.
patent: 5487625 (1996-01-01), Ljungbert et al.
patent: 5505902 (1996-04-01), Fischer et al.
patent: 5529804 (1996-06-01), Bonneau et al.
patent: 5674564 (1997-10-01), Ljungberg et al.
patent: 5786069 (1998-07-01), Ljungberg et al.
patent: 5841045 (1998-11-01), McCandlish et al.
patent: 346473 (1930-01-01), None
Dialog Information Services, File 351, Derwent WPI, Dialog Accession No. 010155859, WPI Accession No. 95-057111/199508, (NGK Spark Plug Co Ltd), “Tungsten-carbide-base cemented carbide used for cutting tool—comprises hard phase having specified particle size distribution and contg tungsten carbide and ferrous metal bonding phase”, & JP,A 6335808, 19941206, 199508 B (No Date/Month).
Dialog Information Services, File 351, Derwent WPI, Dialog Accession No. 011397725, WPI Accession No. 97-375632/199735, (Kobe Steel Ltd), “Hard tough cemented carbide—comprises mainly tungsten carbide, cobalt and nickel”, & JP,A,9125185, 19970513, 199735 B (No Date/Month).
Dialog Information Services, File 351, Derwent WPI, Dialog Accession No. 011172064, WPI Accession No. 97-149989/199714, (Dijet Ind Co Ltd), “Sintered hard material for water jet or wire drawing die nozzles—comprises iron, cobalt, and/or nickel, carbide and/or carbonitride of Gp-IVA transition metal, and tungsten carbide”, & JP,A9025535, 19979128, 199174 B (No Date/Month).
Dialog Information Services, File 351, Derwent WPI, Dialog Accession No. 008723156, WPI Accession No. 91-227173/199131, (Toshiba Tungalloy KK), “Coated sintered hard alloy for intermittent cuttin—base has single or multilayers of ceramics on matrix of tungsten carbide or gp-IVA, gp-VA or gp-VIA carbide(s) or carbonitride(s)”, & JP,A,3146677, 19910621, 199131 B (No Date/Month).
Dialog Information Services, File 351, Derwent WPI, Dialog Accession No. 008551086, WPI Accession No. 91-055137/199108, (Hitachi Tool KK) , “Super-hard alloy prodn.—comprises hard phase of titanium-carbide, titanium-nitride and tungsten carbide and binder phase of Iron-Gp. metal”, JP,A,3006349, 19910111, 199108 B (No Date/Month).
Dialog Information Services, File 351, Derwent WPI, Dialog Accession No. 004689404, WPI Accession No. 86-192746/198630 (Hitachi Choko KK), “Utrafine particles sintered hard alloy-13 comprises tungsten carbide hard phase bonded with iron and chromium gp elements contg. carbide(s)”, JP,A,61124548, 19860612, 198630 B (No Date/Month).
Dialog Information Services, File 351, Derwent WPI, Dialog Accession No. 004675229, WPI Accession No. 86-178571/198628, (Hitachi Choko KK et al.), “Hard alloy useful for cutting tools etc.—comprises hard phase contg. tungsten carbide, and binder metal phase contg. Iron-gp and chromium-gp. elements”, JP,A,61110745, 19860529, 198628 B (No Date/Month).

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