ZA863979B - A method of making a blank of a drill bit - Google Patents

A method of making a blank of a drill bit

Info

Publication number
ZA863979B
ZA863979B ZA863979A ZA863979A ZA863979B ZA 863979 B ZA863979 B ZA 863979B ZA 863979 A ZA863979 A ZA 863979A ZA 863979 A ZA863979 A ZA 863979A ZA 863979 B ZA863979 B ZA 863979B
Authority
ZA
South Africa
Prior art keywords
blank
making
drill bit
drill
bit
Prior art date
Application number
ZA863979A
Other languages
English (en)
Inventor
Cornelius Phaal
Original Assignee
De Beers Ind Diamond
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 De Beers Ind Diamond filed Critical De Beers Ind Diamond
Priority to ZA863979A priority Critical patent/ZA863979B/xx
Publication of ZA863979B publication Critical patent/ZA863979B/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/32—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools twist-drills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
ZA863979A 1985-06-13 1986-05-28 A method of making a blank of a drill bit ZA863979B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA863979A ZA863979B (en) 1985-06-13 1986-05-28 A method of making a blank of a drill bit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA854462 1985-06-13
ZA863979A ZA863979B (en) 1985-06-13 1986-05-28 A method of making a blank of a drill bit

Publications (1)

Publication Number Publication Date
ZA863979B true ZA863979B (en) 1987-01-28

Family

ID=25577945

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA863979A ZA863979B (en) 1985-06-13 1986-05-28 A method of making a blank of a drill bit

Country Status (6)

Country Link
US (1) US4694710A (2)
EP (1) EP0206652B1 (2)
JP (1) JPS61288941A (2)
DE (1) DE3681760D1 (2)
IE (1) IE57510B1 (2)
ZA (1) ZA863979B (2)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9701695D0 (en) * 1997-01-28 1997-03-19 De Beers Ind Diamond Insert for an abrasive tool
ZA982007B (en) * 1997-03-17 1998-09-10 De Beers Ind Diamond Drill blank
DE69810214T2 (de) * 1997-08-27 2003-08-07 De Beers Industrial Diamonds (Pty.) Ltd., Johannesburg Verfahren zur Herstellung eines Bohrerrohlings
JP2003205410A (ja) * 2002-01-11 2003-07-22 Mitsubishi Materials Kobe Tools Corp 脆性材料用穴明け工具
CN102695581B (zh) 2009-12-31 2016-03-02 戴蒙得创新股份有限公司 制造加工刀具的坯料以及使用坯料制造加工刀具的方法
GB201020967D0 (en) * 2010-12-10 2011-01-26 Element Six Production Pty Ltd Bit for a rotary drill
US9555506B2 (en) * 2012-02-28 2017-01-31 Kyocera Corporation Drill blank, method for manufacturing drill blank, drill, and method for manufacturing drill

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1873423A (en) * 1923-11-05 1932-08-23 Cincinnati Grinders Inc Grinding machine
US1789408A (en) * 1926-02-24 1931-01-20 Hultgren Axel Gustaf Emanuel Machine for centerless grinding
SU547333A1 (ru) * 1971-12-02 1977-02-25 Предприятие П/Я Р-6793 Способ изготовлени абразивного инструмента
US4224380A (en) * 1978-03-28 1980-09-23 General Electric Company Temperature resistant abrasive compact and method for making same
CA1216158A (en) * 1981-11-09 1987-01-06 Akio Hara Composite compact component and a process for the production of the same
EP0168953B2 (en) * 1984-06-12 1998-07-01 Sumitomo Electric Industries Limited Stick of composite materials and process for preparation thereof
JPS60264371A (ja) * 1984-06-12 1985-12-27 住友電気工業株式会社 複合焼結材料円柱体

Also Published As

Publication number Publication date
JPS61288941A (ja) 1986-12-19
JPH0474134B2 (2) 1992-11-25
EP0206652A2 (en) 1986-12-30
EP0206652B1 (en) 1991-10-02
DE3681760D1 (de) 1991-11-07
IE861427L (en) 1986-12-13
EP0206652A3 (en) 1988-11-02
IE57510B1 (en) 1992-11-18
US4694710A (en) 1987-09-22

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