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1. (WO2010075154) METHODS OF FORMING BODIES FOR EARTH BORING DRILLING TOOLS COMPRISING MOLDING AND SINTERING TECHNIQUES, AND BODIES FOR EARTH-BORING TOOLS FORMED USING SUCH METHODS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/075154 International Application No.: PCT/US2009/068407
Publication Date: 01.07.2010 International Filing Date: 17.12.2009
IPC:
B22F 3/12 (2006.01) ,E21B 10/08 (2006.01) ,E21B 10/50 (2006.01) ,B22F 3/20 (2006.01) ,B22F 5/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3
Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
12
Both compacting and sintering
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
10
Drill bits
08
Roller bits
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
10
Drill bits
46
characterised by wear resisting parts, e.g. diamond inserts
50
the bit being of roller type
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3
Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
20
by extruding
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
5
Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
Applicants:
BAKER HUGHES INCORPORATED [US/US]; P.O. Box 4740 Houston, TX 77210, US (AllExceptUS)
EASON, Jimmy, W. [US/US]; US (UsOnly)
Inventors:
EASON, Jimmy, W.; US
Agent:
WELBORN, Brian, S.; Baker Hughes Incorporated Intellectual Property Counsel P.O. Box 4740 Houston, TX 77210-4740, US
Priority Data:
12/341,66322.12.2008US
Title (EN) METHODS OF FORMING BODIES FOR EARTH BORING DRILLING TOOLS COMPRISING MOLDING AND SINTERING TECHNIQUES, AND BODIES FOR EARTH-BORING TOOLS FORMED USING SUCH METHODS
(FR) MÉTHODES DE FORMATION DE CORPS D'OUTILS DE FORAGE ROTARY COMPRENANT DES TECHNIQUES DE MOULAGE ET DE FRITTAGE, ET CORPS D'OUTILS DE FORAGE AINSI OBTENUS
Abstract:
(EN) Methods of fabricating bodies of earth-boring tools include mechanically injecting a powder mixture into a mold cavity, pressurizing the powder mixture within the mold cavity to form a green body, and sintering the green body to a desired final density to form at least a portion of a body of an earth-boring tool. For example, a green bit body may be injection molded, and the green bit body may be sintered to form at least a portion of a bit body of an earth-boring rotary drill bit. Intermediate structures formed during fabrication of an earth-boring tool include green bodies having a plurality of hard particles, a plurality of matrix particles comprising a metal matrix material, and an organic material that includes a long chain fatty acid derivative. Structures formed using the methods of fabrication are also disclosed.
(FR) L'invention porte sur des méthodes de formation de corps d'outils de forage consistant à injecter mécaniquement un mélange de poudres dans la cavité d'un moule, pour former un corps de vert, puis à fritter le corps de vert jusqu'à la densité finale désirée pour former au moins une partie du corps de l'outil de forage. Par exemple, un corps de trépan de vert peut être moulé par injection, puis fritté pour former au moins une partie du corps d'un trépan de forage. Des structures intermédiaires formées pendant la fabrication d'un outil de forage comportent des corps de vert comportant des particules dures, des particules matrices à matrice de matériau métallique, et un matériau organique incluant des dérivés d'acide gras à chaîne longue. L'invention porte également sur des structures utilisant les susdites méthodes de fabrication.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
MXMX/a/2011/006123EP2379255RU2011129854CA2747738MX2011006123BRPI0923130
ES2622952