EP0857552A2 - Elément pour couper de la pierre ayant une résistance accrue à l'usure - Google Patents

Elément pour couper de la pierre ayant une résistance accrue à l'usure Download PDF

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Publication number
EP0857552A2
EP0857552A2 EP98200161A EP98200161A EP0857552A2 EP 0857552 A2 EP0857552 A2 EP 0857552A2 EP 98200161 A EP98200161 A EP 98200161A EP 98200161 A EP98200161 A EP 98200161A EP 0857552 A2 EP0857552 A2 EP 0857552A2
Authority
EP
European Patent Office
Prior art keywords
processing tool
gate zone
stone processing
tool according
stone
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
EP98200161A
Other languages
German (de)
English (en)
Other versions
EP0857552B1 (fr
EP0857552A3 (fr
Inventor
Herbert Prantl
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.)
Tyrolit-Schleifmittelwerke Swarovski KG
Tyrolit Schleifmittelwerke
Original Assignee
Tyrolit-Schleifmittelwerke Swarovski KG
Tyrolit Schleifmittelwerke
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 Tyrolit-Schleifmittelwerke Swarovski KG, Tyrolit Schleifmittelwerke filed Critical Tyrolit-Schleifmittelwerke Swarovski KG
Publication of EP0857552A2 publication Critical patent/EP0857552A2/fr
Publication of EP0857552A3 publication Critical patent/EP0857552A3/fr
Application granted granted Critical
Publication of EP0857552B1 publication Critical patent/EP0857552B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
    • 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
    • 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
    • B28D1/12—Saw-blades or saw-discs specially adapted for working stone

Definitions

  • the invention relates to a stone machining tool with sintered metal-bonded, preferably multi-layered diamond containing cutting material assembled abrasive elements, for example for core drilling.
  • EP 0 15 6762 B1 describes only a gradual achievement in this regard the full sleekness over the entire contact area between the roof segment and workpiece and is satisfied with the rapid formation of the linear Touch to ensure tool guidance or centering of the hollow drill on the stone material.
  • This object is achieved by a in the feed direction Stone working tool seen on the outside of the abrasive elements trained gate zone, which has a different composition with increased Has wear compared to the regular main part of the abrasive elements.
  • This different structure can be achieved through filling measures in the sintered metal bond the gate zone with the grinding technology itself with high-performance abrasives known fillers such as tungsten disulfide, tungsten carbide, Molybdenum disulphide, coal grit, corundum, silicon carbide, lime, glass, by cutting or more brittle diamond grain, by cutting grain concentration reduction and / or through different, softer-tuned binding compositions can be achieved.
  • the combination of 2 or more measures is favorable, the difference in construction and thus wear in accordance with the invention the regular main part and the cut zone of the abrasive elements bring about.
  • Fig. 1 shows an embodiment of the invention in the form of a hollow drill with sintered metal Abrasive elements.
  • the abrasive elements (1) are as roof segments executed.
  • the gate zone (3) follows the roof-shaped contour of the Abrasive element (1).
  • the thickness of the gate zone (3) has been shown in tests proved to be cheapest if they were about the average grain diameter of the in the Gate zone (3) corresponds to diamond grain (5) used.
  • the abrasive elements (1) are on the carrier body by soldering, welding or sintering (6) of the tool attached.
  • Fig. 2 shows a metallurgical cut, made in the plane according to Cut (7) of an abrasive element (1).
  • the gate zone (3) is in the sense the invention adjusted more wear by adding copper-tin-bronze with 92 weight percent copper and 8 weight percent tin as a percentage of 11.5 volume percent for pure cobalt binding according to regular part (4).
  • the gate zone (3) with molybdenum disulfide in a percentage of 3.8 volume percent, with an average grain size of 3.5 my to achieve the provided drilling properties according to the invention.
  • FIGS. 3 and 4 each represent a graphical test report with a Comparison of one improved according to the invention and one after the prior art stone working tool in the following Conditions:
  • Fig. 4 shows the different feed speeds with an inventive Hollow drill (11) and with a standard hollow drill (10) Reinforced concrete in the area of steel reinforcement.
  • the drilling with the invention with an unsharpened subscription zone (3) equipped hollow drill initially took place at a reduced feed rate (11) the feed rate (10) with a sharpened standard hollow drill. After about 0.5 m of drilling, a reversal took place in the test example according to FIG the feed rate values up to the end of the drilling test stopped after 2.8 m drilling.
  • Fig. 3 shows in principle similar course of the experiment as shown in Fig. 4, only with slightly less difference between the feed speed achievable according to the invention (9) and standard feed rate (8) because of the concrete no steel reinforcement contained.
  • the idea of the invention is not limited to that described above Embodiment, but also extends to embodiments not shown of stone working tools.
  • the benefit of the invention can always get particularly with such stone working tools if the proportion of the contact area between stone working tool and workpiece on the total working surface of the abrasive stone processing tool is high, for example when deep-cutting with circular saws, for milling, hollow drilling, frame saws and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Drilling Tools (AREA)
EP98200161A 1997-01-27 1998-01-22 Outil pour l'usinage de la pierre avec amélioration du comportement à l'attaque Expired - Lifetime EP0857552B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT10997 1997-01-27
AT10997 1997-01-27
AT109/97 1997-01-27

Publications (3)

Publication Number Publication Date
EP0857552A2 true EP0857552A2 (fr) 1998-08-12
EP0857552A3 EP0857552A3 (fr) 2000-02-09
EP0857552B1 EP0857552B1 (fr) 2000-10-25

Family

ID=3481760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98200161A Expired - Lifetime EP0857552B1 (fr) 1997-01-27 1998-01-22 Outil pour l'usinage de la pierre avec amélioration du comportement à l'attaque

Country Status (4)

Country Link
EP (1) EP0857552B1 (fr)
AT (1) ATE197133T1 (fr)
DE (1) DE59800309D1 (fr)
ES (1) ES2154072T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10005064A1 (de) * 2000-02-04 2001-08-23 Siegfried Goelz Gmbh & Co Sintermetallgebundene abrasiv wirkende Segmente für Werkzeuge
EP1980346A1 (fr) 2007-04-13 2008-10-15 Tyrolit Schleifmittelwerke Swarovski KG Mèche creuse
EP1480781A4 (fr) * 2002-02-08 2009-08-19 Ehwa Diamond Ind Co Ltd Plaquette de coupe pour outil diamante et outil diamante
US10308559B2 (en) 2015-04-27 2019-06-04 Element Six (Uk) Limited Sintered polycrystalline cubic boron nitride body

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7373997B2 (en) 2005-02-18 2008-05-20 Smith International, Inc. Layered hardfacing, durable hardfacing for drill bits

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408092A1 (de) * 1984-03-05 1985-09-19 Hilti Ag, Schaan Hohlbohrer
AU577958B2 (en) * 1985-08-22 1988-10-06 De Beers Industrial Diamond Division (Proprietary) Limited Abrasive compact
DE3600189A1 (de) * 1986-01-16 1987-07-16 Kazachskij Politekhn I Im W I Diamantbohrkrone
DE3706641A1 (de) * 1987-03-02 1988-09-15 Hilti Ag Hohlbohrer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10005064A1 (de) * 2000-02-04 2001-08-23 Siegfried Goelz Gmbh & Co Sintermetallgebundene abrasiv wirkende Segmente für Werkzeuge
US6712062B2 (en) 2000-02-04 2004-03-30 Siegfried Golz Gmbh & Co. Sintered metal bonded segments with an abrasive action, for tools
EP1480781A4 (fr) * 2002-02-08 2009-08-19 Ehwa Diamond Ind Co Ltd Plaquette de coupe pour outil diamante et outil diamante
EP1980346A1 (fr) 2007-04-13 2008-10-15 Tyrolit Schleifmittelwerke Swarovski KG Mèche creuse
US10308559B2 (en) 2015-04-27 2019-06-04 Element Six (Uk) Limited Sintered polycrystalline cubic boron nitride body

Also Published As

Publication number Publication date
EP0857552B1 (fr) 2000-10-25
ES2154072T3 (es) 2001-03-16
EP0857552A3 (fr) 2000-02-09
DE59800309D1 (de) 2000-11-30
ATE197133T1 (de) 2000-11-15

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