EP0315221A3 - Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel - Google Patents

Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel Download PDF

Info

Publication number
EP0315221A3
EP0315221A3 EP88120448A EP88120448A EP0315221A3 EP 0315221 A3 EP0315221 A3 EP 0315221A3 EP 88120448 A EP88120448 A EP 88120448A EP 88120448 A EP88120448 A EP 88120448A EP 0315221 A3 EP0315221 A3 EP 0315221A3
Authority
EP
European Patent Office
Prior art keywords
cutting element
thickness
bit body
backing layer
terms
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.)
Withdrawn
Application number
EP88120448A
Other languages
English (en)
French (fr)
Other versions
EP0315221A2 (de
Inventor
John Denzil Barr
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.)
Camco Drilling Group Ltd
Original Assignee
Reed Tool Co Ltd
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 GB858505244A external-priority patent/GB8505244D0/en
Application filed by Reed Tool Co Ltd filed Critical Reed Tool Co Ltd
Priority to EP88120448A priority Critical patent/EP0315221A3/de
Publication of EP0315221A2 publication Critical patent/EP0315221A2/de
Publication of EP0315221A3 publication Critical patent/EP0315221A3/de
Withdrawn legal-status Critical Current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
    • E21B10/56—Button-type inserts
    • E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • E21B10/573—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts characterised by support details, e.g. the substrate construction or the interface between the substrate and the cutting element
    • E21B10/5735—Interface between the substrate and the cutting element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
EP88120448A 1985-02-28 1986-02-21 Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel Withdrawn EP0315221A3 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP88120448A EP0315221A3 (de) 1985-02-28 1986-02-21 Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8505244 1985-02-28
GB858505244A GB8505244D0 (en) 1985-02-28 1985-02-28 Rotary drill bits
EP88120448A EP0315221A3 (de) 1985-02-28 1986-02-21 Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP86301244A Division EP0193361B1 (de) 1985-02-28 1986-02-21 Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel
EP86301244.9 Division 1986-02-21

Publications (2)

Publication Number Publication Date
EP0315221A2 EP0315221A2 (de) 1989-05-10
EP0315221A3 true EP0315221A3 (de) 1989-10-25

Family

ID=26114791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88120448A Withdrawn EP0315221A3 (de) 1985-02-28 1986-02-21 Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel

Country Status (1)

Country Link
EP (1) EP0315221A3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2789004A1 (fr) * 1999-02-02 2000-08-04 Jackson E Wetzel Outil a polir notamment des ecrans de television

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186628A (en) * 1976-11-30 1980-02-05 General Electric Company Rotary drill bit and method for making same
GB2084219A (en) * 1980-09-25 1982-04-07 Nl Industries Inc Mounting of cutters on cutting tools
EP0079243A1 (de) * 1981-11-09 1983-05-18 Sumitomo Electric Industries Limited Kompaktverbundkörper der einen Presskörper aus Diamant oder Bornitrid enthält

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186628A (en) * 1976-11-30 1980-02-05 General Electric Company Rotary drill bit and method for making same
GB2084219A (en) * 1980-09-25 1982-04-07 Nl Industries Inc Mounting of cutters on cutting tools
EP0079243A1 (de) * 1981-11-09 1983-05-18 Sumitomo Electric Industries Limited Kompaktverbundkörper der einen Presskörper aus Diamant oder Bornitrid enthält

Also Published As

Publication number Publication date
EP0315221A2 (de) 1989-05-10

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