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Henry S Meeks, Stephen P Swinney: Composite body formation of consolidated powder metal part. Ceracon, William W Haefliger, July 16, 1991: US05032352 (107 worldwide citation)

The method of consolidating a powder material to form a composite part includes forming a pattern which is a scaled-up version of the part to be formed; employing the pattern to produce a flexible mold with interior conformation matching the pattern exterior; introducing a previously formed shape, i ...


32
Brian Hubert, Colin Bulthaup, Chris Gudeman, Chris Spindt, Scott Haubrich, Mao Takashima, Joerg Rockenberger, Klaus Kunze, Fabio Zurcher: Contact print methods. Kovio, Haverstock & Owens, October 25, 2005: US06957608 (106 worldwide citation)

A method of and device for controlled printing using liquid embossing techniques is disclosed. In accordance with the embodiments of the invention a stamp comprises a differentiated embossing surface with protruding and recessed surfaces to enhance the ability of the stamp to selectively displace li ...


33
Cesur Celik, Tony Addona, Maher I Boulos, Gangqiang Chen, H John Davis: Method and transferred arc plasma system for production of fine and ultrafine powders. Noranda, Katten Muchin Zavis, April 30, 2002: US06379419 (105 worldwide citation)

The present invention is concerned with a method for the production of fine and ultrafine powders of various materials such as metals, alloys, ceramics, composites etc., through a transferred arc plasma system. The method comprises vaporizing or decomposing the material in the plasma reactor, conden ...


34
Lloyd L Garner: Method of fabrication of rock bit inserts of tungsten carbide (WC) and cobalt (Co) with cutting surface wear pad of relative hardness and body portion of relative toughness sintered as an integral composite. Smith International, Robert G Upton, November 16, 1982: US04359335 (105 worldwide citation)

A method of fabricating a rock bit insert which has improved wear characteristics is disclosed. Selected surfaces of the insert are implanted with a harder grade of tungsten carbide and sintered thereto. The special insert then would find application in the gage row of, for example, a roller cone ro ...


35
Griffin Nigel Dennis, Hughes Peter Raymond, Matthias Terry R: Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength. Camco Int, March 27, 2002: EP1190791-A2 (104 worldwide citation)

Disclosed is a polycrystalline diamond or diamond-like element (10) with greatly improved wear resistance without loss of impact strength. These elements are formed with a binder-catalyzing material in a high-temperature, high-pressure (HTHP) process. The PCD element has a body with a plurality of b ...


36
Richard A Flak, T H, Thomas W Oldham: Polycrystalline diamond bit manufacturing. Smith International, Christie Parker & Hale, June 9, 1998: US05765095 (103 worldwide citation)

A method for manufacturing a PCD bit by isostatically or mechanically press forming a green on a metallic blank. A metallic blank is vertically suspended into a flexible vessel. Powder metal is mixed with a binder and introduced into the flexible vessel surrounding the lower end of the suspended met ...


37
Leslie G Fritzemeier, Daniel E Matejczyk, Thomas J Van Daam: Method for preparing cryomilled aluminum alloys and components extruded and forged therefrom. The Boeing Company, Alston & Bird, June 7, 2005: US06902699 (102 worldwide citation)

High strength aluminum alloy powders, extrusions, and forgings are provided in which the aluminum alloys exhibit high strength at atmospheric temperatures and maintain high strength and ductility at extremely low temperatures. The alloy is produced by blending about 89 atomic % to 99 atomic % alumin ...


38
Tetsuo Nakai, Shuji Yazu, Akio Hara: Compound sintered compact for use in a tool and the method for producing the same. Sumitomo Electric, Wenderoth Lind & Ponack, September 6, 1983: US04403015 (101 worldwide citation)

The invention enables to obtain a compound sintered compact for use in a cutting tool having particularly high properties in respect of bonded strength, hardness, wear resistance, plastic deformability and rigidity by bonding a diamond or cubic boron nitride containing hard layer to a cemented carbi ...


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Prakash K Mirchandani, Robert E Thomas, Mark Cippel: Multiple grade cemented carbide articles and a method of making the same. SinterMet, Reed Smith Shaw & McClay, August 6, 1996: US05543235 (99 worldwide citation)

The present invention provides multiple grade, composite cemented carbide articles and a method of making such articles. The cemented carbide articles comprise carbides of different grades (or different compositions and/or microstructures) and, therefore, correspondingly different properties at diff ...



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