EP0340340A1 - Procédé pour la fabrication d'un trépan carottier diamanté - Google Patents

Procédé pour la fabrication d'un trépan carottier diamanté Download PDF

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Publication number
EP0340340A1
EP0340340A1 EP88119262A EP88119262A EP0340340A1 EP 0340340 A1 EP0340340 A1 EP 0340340A1 EP 88119262 A EP88119262 A EP 88119262A EP 88119262 A EP88119262 A EP 88119262A EP 0340340 A1 EP0340340 A1 EP 0340340A1
Authority
EP
European Patent Office
Prior art keywords
face
tube
cutting segments
wall thickness
diamond
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.)
Granted
Application number
EP88119262A
Other languages
German (de)
English (en)
Other versions
EP0340340B1 (fr
Inventor
Wolfgang Meier
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT88119262T priority Critical patent/ATE91749T1/de
Publication of EP0340340A1 publication Critical patent/EP0340340A1/fr
Application granted granted Critical
Publication of EP0340340B1 publication Critical patent/EP0340340B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a method for producing and / or refitting a diamond core drill in the form of a tube, the end face of which has a greater wall thickness than the rest of the tube wall in order to carry cutting segments on the annular end face.
  • the object of the invention is to improve a method for producing and / or refitting a diamond core drill of the type mentioned at the outset in such a way that the drill can very often be provided with cutting segments again and again in a simple and inexpensive manner.
  • this object is achieved in that the greater wall thickness in the end region of the tube is achieved by upsetting, in particular in a rolling process.
  • the tube on the cutting end face may have a smaller wall thickness than is required for the segments, since after a slight smooth turning or milling the end face, it is swaged up again until it has a sufficient wall thickness for which has cutting segments.
  • the tube can thus have a constant small wall thickness over its entire length and only needs to be swaged up at the cutting end until the width of the end face is large enough for fastening the cutting segments. This means that, after the respective cutting segment set has worn out, only a very small pipe length is used in order to obtain a sufficiently wide end face again.
  • Such a method is relatively inexpensive and labor intensive.
  • the metal is solidified on the cutting face by the upsetting, so that a particularly secure hold is given.
  • At least one roller runs under pressure on the tube end face until the wall thickness required for the cutting segments is reached. It is also preferably proposed that the existing used cutting segments be removed from the pipe end face as far as possible and that the pipe end face is turned or milled off by a small length for new equipping with cutting segments, and that the pipe end face is then swaged up.
  • the tube 1 of a diamond core drill is thickened 1a at the free cutting end, so that the annular end face 3 has a greater thickness than the rest of the tube wall. Diamond cutting segments 2 are soldered onto this end face 3.
  • the pipe end is swaged up cold-deforming by rolling.
  • at least one roller is placed radially to the tube against the end face 3 and pressed onto the end face in a rolling manner, as a result of which the tube material, in particular the steel, is cold-deformed in the region 1a.
  • the axis of the deforming roller is arranged so that it intersects the tube axis 7.
  • the deforming roller can have a cylindrical or else a spherical or pointed roller jacket in order to accelerate the deformation.
  • the tube end face only has to be turned or milled by a few millimeters, after which the tube end face is then swaged up.
  • this forms a clearance angle 5 on both the inside and outside diameters 4, 6, so that the end face 3 protrudes from the tube wall both on the inside and on the outside. So that is ensures that the pipe wall is not exposed to wear in the not or little widened area.

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)
EP88119262A 1988-04-25 1988-11-19 Procédé pour la fabrication d'un trépan carottier diamanté Expired - Lifetime EP0340340B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88119262T ATE91749T1 (de) 1988-04-25 1988-11-19 Verfahren zum herstellen eines diamantkernbohrers.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8805449U DE8805449U1 (de) 1988-04-25 1988-04-25 Diamant-Kernbohrer
DE8805449U 1988-04-25

Publications (2)

Publication Number Publication Date
EP0340340A1 true EP0340340A1 (fr) 1989-11-08
EP0340340B1 EP0340340B1 (fr) 1993-07-21

Family

ID=6823338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119262A Expired - Lifetime EP0340340B1 (fr) 1988-04-25 1988-11-19 Procédé pour la fabrication d'un trépan carottier diamanté

Country Status (3)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0706870A1 (fr) * 1994-10-15 1996-04-17 HILTI Aktiengesellschaft Scie tubulaire
WO2001064410A1 (fr) * 2000-03-01 2001-09-07 'diamant Boart', Naamloze Vennootschap Foret tubulaire
EP1182324A2 (fr) * 2000-08-25 2002-02-27 HILTI Aktiengesellschaft Couronne de forage diamantée
CN109352837A (zh) * 2018-10-25 2019-02-19 江苏锋泰工具有限公司 一种干式tm齿打孔钻

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1996181A (en) * 1930-11-01 1935-04-02 Justin F Wait Process of forming castings
CH185076A (de) * 1935-05-04 1936-07-15 Sauer Carl Kernbohrer für Mauerwerk.
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
DE2850015A1 (de) * 1977-11-18 1979-05-23 Lamage Ltd Diamantenbestueckter bohreinsatz
GB1583860A (en) * 1976-08-20 1981-02-04 Moppes & Sons Ltd L Van Core drills
DE3742496A1 (de) * 1986-12-15 1988-06-16 Nippon Steel Corp Verfahren zur bearbeitung der enden einer stahlroehre durch stauchen und pressen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE199063C (fr) *
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
JPS57127535A (en) * 1981-01-29 1982-08-07 Kobe Steel Ltd Upset forging method
JPS58163542A (ja) * 1982-03-23 1983-09-28 Sumitomo Metal Ind Ltd 管体のアプセツト加工方法
DE3408092A1 (de) * 1984-03-05 1985-09-19 Hilti Ag, Schaan Hohlbohrer
DE3512114A1 (de) * 1985-04-03 1986-10-09 Meissner, Joachim Hohlbohrkrone

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1996181A (en) * 1930-11-01 1935-04-02 Justin F Wait Process of forming castings
CH185076A (de) * 1935-05-04 1936-07-15 Sauer Carl Kernbohrer für Mauerwerk.
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
GB1583860A (en) * 1976-08-20 1981-02-04 Moppes & Sons Ltd L Van Core drills
DE2850015A1 (de) * 1977-11-18 1979-05-23 Lamage Ltd Diamantenbestueckter bohreinsatz
DE3742496A1 (de) * 1986-12-15 1988-06-16 Nippon Steel Corp Verfahren zur bearbeitung der enden einer stahlroehre durch stauchen und pressen

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0706870A1 (fr) * 1994-10-15 1996-04-17 HILTI Aktiengesellschaft Scie tubulaire
US5569002A (en) * 1994-10-15 1996-10-29 Hilti Aktiengesellschaft Hollow annular drill bit with hollow cylindrical carrier member
CN1081116C (zh) * 1994-10-15 2002-03-20 希尔蒂股份公司 具有空心圆柱形支座的空心钻头
WO2001064410A1 (fr) * 2000-03-01 2001-09-07 'diamant Boart', Naamloze Vennootschap Foret tubulaire
BE1013336A3 (nl) * 2000-03-01 2001-12-04 Diamant Boart Nv Buisvormige boor.
EP1182324A2 (fr) * 2000-08-25 2002-02-27 HILTI Aktiengesellschaft Couronne de forage diamantée
EP1182324A3 (fr) * 2000-08-25 2002-04-03 HILTI Aktiengesellschaft Couronne de forage diamantée
DE10041911B4 (de) * 2000-08-25 2009-02-05 Hilti Aktiengesellschaft Diamantbohrkrone
CN109352837A (zh) * 2018-10-25 2019-02-19 江苏锋泰工具有限公司 一种干式tm齿打孔钻
CN109352837B (zh) * 2018-10-25 2021-02-12 江苏锋泰工具有限公司 一种干式tm齿打孔钻

Also Published As

Publication number Publication date
EP0340340B1 (fr) 1993-07-21
DE8805449U1 (de) 1988-06-09
ATE91749T1 (de) 1993-08-15
DE3882520D1 (fr) 1993-08-26

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