GB2384262B - Drill bits and other articles of manufacture including a layer-manufactured shell integrally secured to a cast structure and methods of fabricating same - Google Patents

Drill bits and other articles of manufacture including a layer-manufactured shell integrally secured to a cast structure and methods of fabricating same

Info

Publication number
GB2384262B
GB2384262B GB0309391A GB0309391A GB2384262B GB 2384262 B GB2384262 B GB 2384262B GB 0309391 A GB0309391 A GB 0309391A GB 0309391 A GB0309391 A GB 0309391A GB 2384262 B GB2384262 B GB 2384262B
Authority
GB
United Kingdom
Prior art keywords
articles
methods
layer
manufacture including
drill bits
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB0309391A
Other versions
GB2384262A (en
GB0309391D0 (en
Inventor
Sidney L Findley
Trent N Butcher
Gordon A Tibbitts
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes Holdings LLC
Original Assignee
Baker Hughes Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/236,971 external-priority patent/US6454030B1/en
Application filed by Baker Hughes Inc filed Critical Baker Hughes Inc
Publication of GB0309391D0 publication Critical patent/GB0309391D0/en
Publication of GB2384262A publication Critical patent/GB2384262A/en
Application granted granted Critical
Publication of GB2384262B publication Critical patent/GB2384262B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
    • E21B10/55—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits with preformed cutting elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Powder Metallurgy (AREA)
GB0309391A 1999-01-25 1999-12-24 Drill bits and other articles of manufacture including a layer-manufactured shell integrally secured to a cast structure and methods of fabricating same Expired - Fee Related GB2384262B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/236,971 US6454030B1 (en) 1999-01-25 1999-01-25 Drill bits and other articles of manufacture including a layer-manufactured shell integrally secured to a cast structure and methods of fabricating same
GB9930843A GB2345930B (en) 1999-01-25 1999-12-24 Earth-boring drill bit

Publications (3)

Publication Number Publication Date
GB0309391D0 GB0309391D0 (en) 2003-06-04
GB2384262A GB2384262A (en) 2003-07-23
GB2384262B true GB2384262B (en) 2003-09-03

Family

ID=26316157

Family Applications (4)

Application Number Title Priority Date Filing Date
GB0309419A Expired - Fee Related GB2384265B (en) 1999-01-25 1999-12-24 Method of designing an earth-boring drill bit
GB0309408A Expired - Fee Related GB2384263B (en) 1999-01-25 1999-12-24 A mold for fabricating an earth-boring drill bit
GB0309412A Expired - Fee Related GB2384264B (en) 1999-01-25 1999-12-24 A method of fabricating a rotary type earth-boring drill bit
GB0309391A Expired - Fee Related GB2384262B (en) 1999-01-25 1999-12-24 Drill bits and other articles of manufacture including a layer-manufactured shell integrally secured to a cast structure and methods of fabricating same

Family Applications Before (3)

Application Number Title Priority Date Filing Date
GB0309419A Expired - Fee Related GB2384265B (en) 1999-01-25 1999-12-24 Method of designing an earth-boring drill bit
GB0309408A Expired - Fee Related GB2384263B (en) 1999-01-25 1999-12-24 A mold for fabricating an earth-boring drill bit
GB0309412A Expired - Fee Related GB2384264B (en) 1999-01-25 1999-12-24 A method of fabricating a rotary type earth-boring drill bit

Country Status (1)

Country Link
GB (4) GB2384265B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990001384A1 (en) * 1988-08-02 1990-02-22 Astec Developments Limited Investment casting process
GB2238736A (en) * 1989-09-16 1991-06-12 Astec Dev Ltd Drill bit or corehead manufacturing process
GB2285236A (en) * 1993-12-22 1995-07-05 Baker Hughes Inc Earth boring drill bit with shell supporting an external drilling surface
US5433280A (en) * 1994-03-16 1995-07-18 Baker Hughes Incorporated Fabrication method for rotary bits and bit components and bits and components produced thereby
WO1998013317A2 (en) * 1996-09-24 1998-04-02 Baker Hughes Incorporated Method and apparatus for infiltrating or sintering preformed components and components assemblies

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990001384A1 (en) * 1988-08-02 1990-02-22 Astec Developments Limited Investment casting process
GB2238736A (en) * 1989-09-16 1991-06-12 Astec Dev Ltd Drill bit or corehead manufacturing process
GB2285236A (en) * 1993-12-22 1995-07-05 Baker Hughes Inc Earth boring drill bit with shell supporting an external drilling surface
US5433280A (en) * 1994-03-16 1995-07-18 Baker Hughes Incorporated Fabrication method for rotary bits and bit components and bits and components produced thereby
WO1998013317A2 (en) * 1996-09-24 1998-04-02 Baker Hughes Incorporated Method and apparatus for infiltrating or sintering preformed components and components assemblies

Also Published As

Publication number Publication date
GB2384264A (en) 2003-07-23
GB0309419D0 (en) 2003-06-04
GB2384265A (en) 2003-07-23
GB2384263A (en) 2003-07-23
GB2384262A (en) 2003-07-23
GB0309391D0 (en) 2003-06-04
GB2384265B (en) 2003-09-24
GB0309412D0 (en) 2003-06-04
GB2384263B (en) 2003-10-22
GB0309408D0 (en) 2003-06-04
GB2384264B (en) 2003-10-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20141224