ATE91749T1 - PROCESS FOR MAKING A DIAMOND CORE DRILL. - Google Patents

PROCESS FOR MAKING A DIAMOND CORE DRILL.

Info

Publication number
ATE91749T1
ATE91749T1 AT88119262T AT88119262T ATE91749T1 AT E91749 T1 ATE91749 T1 AT E91749T1 AT 88119262 T AT88119262 T AT 88119262T AT 88119262 T AT88119262 T AT 88119262T AT E91749 T1 ATE91749 T1 AT E91749T1
Authority
AT
Austria
Prior art keywords
making
core drill
diamond core
tubular
face
Prior art date
Application number
AT88119262T
Other languages
German (de)
Inventor
Wolfgang Meier
Original Assignee
Wolfgang Meier
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 Wolfgang Meier filed Critical Wolfgang Meier
Application granted granted Critical
Publication of ATE91749T1 publication Critical patent/ATE91749T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D65/00—Making tools for sawing machines or sawing devices for use in cutting any kind of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Drilling Tools (AREA)

Abstract

The invention relates to a method for the production and/or the re-tipping of a diamond-core bit in a tubular form, the end face 3 of which has a greater wall thickness than the rest of the tubular wall in order to carry cutting segments 2 on the annular end face 3, the greater wall thickness in the tubular end area 3, 4 being obtained by upsetting, in particular in a rolling process. <IMAGE>
AT88119262T 1988-04-25 1988-11-19 PROCESS FOR MAKING A DIAMOND CORE DRILL. ATE91749T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8805449U DE8805449U1 (en) 1988-04-25 1988-04-25 Diamond core drill
EP88119262A EP0340340B1 (en) 1988-04-25 1988-11-19 Method for the production of a diamond-core bit

Publications (1)

Publication Number Publication Date
ATE91749T1 true ATE91749T1 (en) 1993-08-15

Family

ID=6823338

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88119262T ATE91749T1 (en) 1988-04-25 1988-11-19 PROCESS FOR MAKING A DIAMOND CORE DRILL.

Country Status (3)

Country Link
EP (1) EP0340340B1 (en)
AT (1) ATE91749T1 (en)
DE (2) DE8805449U1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436915A1 (en) * 1994-10-15 1996-04-18 Hilti Ag Hollow core bit with a hollow cylindrical carrier body
BE1013336A3 (en) * 2000-03-01 2001-12-04 Diamant Boart Nv Tubular drill.
DE10041911B4 (en) * 2000-08-25 2009-02-05 Hilti Aktiengesellschaft diamond drill
CN109352837B (en) * 2018-10-25 2021-02-12 江苏锋泰工具有限公司 Dry type TM tooth punching drill

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE199063C (en) *
US1996181A (en) * 1930-11-01 1935-04-02 Justin F Wait Process of forming castings
CH185076A (en) * 1935-05-04 1936-07-15 Sauer Carl Core drill for masonry.
GB601428A (en) * 1945-06-18 1948-05-05 Wheel Trueing Tool Company Of Improvements in or relating to core bits
US2796777A (en) * 1953-05-06 1957-06-25 Stoll Albert Method and apparatus for resizing tools
US3306380A (en) * 1964-01-27 1967-02-28 Gen Automation Mfg Inc Core drill
US3802520A (en) * 1972-02-16 1974-04-09 L Whitman Combination masonry diamond bit and metal hole-cutting saw
US3981371A (en) * 1975-06-06 1976-09-21 Jamie Malcolm Wallis Core sampling drill
GB1583860A (en) * 1976-08-20 1981-02-04 Moppes & Sons Ltd L Van Core drills
CA1053938A (en) * 1977-11-18 1979-05-08 Robert E. Generoux Drill bit
JPS57127535A (en) * 1981-01-29 1982-08-07 Kobe Steel Ltd Upset forging method
JPS58163542A (en) * 1982-03-23 1983-09-28 Sumitomo Metal Ind Ltd Upsetting method of tube
DE3408092A1 (en) * 1984-03-05 1985-09-19 Hilti Ag, Schaan HOLLOW DRILL
DE3512114A1 (en) * 1985-04-03 1986-10-09 Meissner, Joachim Hollow drill bit
JPS63149038A (en) * 1986-12-15 1988-06-21 Nippon Steel Corp Method for working steel pipe end part by outer upsetting press

Also Published As

Publication number Publication date
DE8805449U1 (en) 1988-06-09
EP0340340B1 (en) 1993-07-21
EP0340340A1 (en) 1989-11-08
DE3882520D1 (en) 1993-08-26

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee