GB980799A - Drill bits - Google Patents

Drill bits

Info

Publication number
GB980799A
GB980799A GB3900662A GB3900662A GB980799A GB 980799 A GB980799 A GB 980799A GB 3900662 A GB3900662 A GB 3900662A GB 3900662 A GB3900662 A GB 3900662A GB 980799 A GB980799 A GB 980799A
Authority
GB
United Kingdom
Prior art keywords
sectors
bit
agglomerate
carbide
grooves
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
Application number
GB3900662A
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.)
Diamant Boart NV SA
Original Assignee
Diamant Boart NV SA
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
Application filed by Diamant Boart NV SA filed Critical Diamant Boart NV SA
Publication of GB980799A publication Critical patent/GB980799A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with cooling provisions
    • 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
    • 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
    • E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
    • 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)

Abstract

980,799. Abrasive tools. DIAMANT BOART. Oct. 15, 1962 [Nov. 24, 1961], No. 39006/62. Heading B3D. A drill bit comprises sectors 2 mounted on a support 1 and separated by grooves 3 for the passage of cooling fluid, each sector comprising, forwardly in relation to the direction of rotation of the bit, a first portion 6 composed of an agglomerate of particles such as hard metallic carbide, such portion being followed by a remaining portion 7 composed of a diamond-set concretion. The sectors may be formed separately as shown or, they may form part of a circular bit having grooves the depth of which is a fraction of the thickness of the bit. In a modification an intermediate portion is provided between the portions 6, 7, this portion being formed of an agglomerate of diamond grains and tungsten carbide particles set in a binder; the particle size of the carbide may be different from that used in the portion 6. The duct 5 may be arranged eccentrically in the support 1 and the sectors instead of being of rectangular cross-section shown, may be of circular or elliptical section. The sectors may also have a positive or negative circumferential rake or clearance starting from their cutting edge 4.
GB3900662A 1961-11-24 1962-10-15 Drill bits Expired GB980799A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE486952 1961-11-24

Publications (1)

Publication Number Publication Date
GB980799A true GB980799A (en) 1965-01-20

Family

ID=3844619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3900662A Expired GB980799A (en) 1961-11-24 1962-10-15 Drill bits

Country Status (2)

Country Link
CH (1) CH386365A (en)
GB (1) GB980799A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5269694U (en) * 1975-11-19 1977-05-24
US4109737A (en) * 1976-06-24 1978-08-29 General Electric Company Rotary drill bit
FR2502235A1 (en) * 1981-03-21 1982-09-24 Christensen Inc CUTTING ELEMENT FOR ROTARY DRILL BIT FOR DEEP DRILLING IN GEOLOGICAL FORMATIONS
US4373593A (en) * 1979-03-16 1983-02-15 Christensen, Inc. Drill bit
US4852671A (en) * 1987-03-17 1989-08-01 Diamant Boart-Stratabit (Usa) Inc. Diamond cutting element
US4928777A (en) * 1984-12-22 1990-05-29 Nl Petroleum Products Limited Cutting elements for rotary drill bits
US5027912A (en) * 1988-07-06 1991-07-02 Baker Hughes Incorporated Drill bit having improved cutter configuration
JP2014156004A (en) * 2013-02-15 2014-08-28 Yamagata Prefecture Composite plating coat and thin grindstone using the same
CN106903807A (en) * 2017-05-03 2017-06-30 金代圣 Diamond bit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106392870B (en) * 2016-12-15 2018-12-21 东旭科技集团有限公司 Milling cutter

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5269694U (en) * 1975-11-19 1977-05-24
US4109737A (en) * 1976-06-24 1978-08-29 General Electric Company Rotary drill bit
US4373593A (en) * 1979-03-16 1983-02-15 Christensen, Inc. Drill bit
FR2502235A1 (en) * 1981-03-21 1982-09-24 Christensen Inc CUTTING ELEMENT FOR ROTARY DRILL BIT FOR DEEP DRILLING IN GEOLOGICAL FORMATIONS
US4928777A (en) * 1984-12-22 1990-05-29 Nl Petroleum Products Limited Cutting elements for rotary drill bits
US4852671A (en) * 1987-03-17 1989-08-01 Diamant Boart-Stratabit (Usa) Inc. Diamond cutting element
US5027912A (en) * 1988-07-06 1991-07-02 Baker Hughes Incorporated Drill bit having improved cutter configuration
JP2014156004A (en) * 2013-02-15 2014-08-28 Yamagata Prefecture Composite plating coat and thin grindstone using the same
CN106903807A (en) * 2017-05-03 2017-06-30 金代圣 Diamond bit

Also Published As

Publication number Publication date
CH386365A (en) 1965-01-15

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