EP0039024A1 - Disque de sciage, en particulier à segments de meulage formés de concrétions diamantées - Google Patents

Disque de sciage, en particulier à segments de meulage formés de concrétions diamantées Download PDF

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Publication number
EP0039024A1
EP0039024A1 EP81102978A EP81102978A EP0039024A1 EP 0039024 A1 EP0039024 A1 EP 0039024A1 EP 81102978 A EP81102978 A EP 81102978A EP 81102978 A EP81102978 A EP 81102978A EP 0039024 A1 EP0039024 A1 EP 0039024A1
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting segments
segments
saw
saw blade
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Withdrawn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
EP81102978A
Other languages
German (de)
English (en)
Inventor
Willi Büttner
Rudolf Büttner
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.)
Buediam Diamantwerkzeuge W U R Buettner GmbH
Original Assignee
Buediam Diamantwerkzeuge W U R Buettner GmbH
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 DE19803015930 external-priority patent/DE3015930A1/de
Application filed by Buediam Diamantwerkzeuge W U R Buettner GmbH filed Critical Buediam Diamantwerkzeuge W U R Buettner GmbH
Publication of EP0039024A1 publication Critical patent/EP0039024A1/fr
Withdrawn legal-status Critical Current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
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02—Circular saw blades
    • B23D61/025—Details of saw blade body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/12—Cut-off wheels
    • B24D5/123—Cut-off wheels having different cutting segments
    • 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
    • B28D1/121—Circular saw blades

Definitions

  • the invention relates to a saw blade, in particular diamond-studded saw blades for cutting natural stones, consisting of a master blade covered with cutting segments.
  • the operating costs of saw blades are determined on the one hand by the acquisition costs and on the other hand by the cutting performance and the service life of the saw blades. It is known to extend the service life of the saw blades by increasing the height of the cutting segments, i.e. the wearing part of these cutting segments is made as high as possible. However, the covering height cannot be increased arbitrarily, since otherwise there is insufficient lateral free cutting and uneven wear of the cutting segments, which gives them a conical configuration which is disadvantageous for the cut.
  • Saw blades with a diameter of 200 - 4,000 mm equipped with diamond cutting segments have a cutting performance of approx. 4oo cm '/ min.
  • the service life of the saw blades is the usual
  • the object of the invention is to erspanungs antique the Z and increase the service life of cutting segments of saw blades, especially occupied with Diamenten cutting segments significantly.
  • the cutting segments are elastically applied to the base sheet.
  • the cutting segments are advantageously fastened on U-shaped brackets which are attached to the base sheet with their lateral legs, the middle connecting web being at a distance from the base sheet.
  • the elastic mounting of the cutting segments has increased the cutting performance and also the tool life by values of up to 50% each, whereby the covering height has been chosen to be the same.
  • This increase in performance and increase the service life due to the fact that by the elastic mounting of the cutting segments in the brittle diamond S chneidbelag be considerably spared more, so that they are less shatter in shock-like load on the cutting segments.
  • the performance of the saw blade is proportional to the engaged diamond tips. Due to the elastic mounting of the cutting segments, the protruding and cutting diamond tips are less severely broken and broken out, so that at any given moment more diamond segments are in engagement and can be used for longer. The result is a significantly increased tool life and cutting performance.
  • the invention is particularly useful for diamond-trimmed cutting segments, since they are extremely sensitive against sudden loads.
  • the invention can also be used equally with other hard cutting elements which are embedded in a mass.
  • 1 denotes the master blade of saw blades.
  • This master sheet can have a diameter of up to three meters.
  • the cutting segment 2 is soldered directly onto the master blade 1.
  • the cutting segments 2 consist of a rectangular outer part, the height of which is approximately 5 mm and an adjoining, inwardly tapering part 4, the height of which is approximately 15 mm, so that the height of the entire cutting segment is approximately 20 mm.
  • the cone angle of the conical part is chosen so that as the wear progresses, the height and width of the rectangular part change of the cutting segment moves the side surface of the rectangular part 3 downward in such a way that it maintains approximately the same height, but constantly migrates towards the base sheet.
  • the tool life can be increased by this measure, but an increase in the cutting performance due to the geometric design of the cutting segment is only possible to a very small extent, if at all.
  • the cutting performance and the service life of a cutting segment of a defined height are increased by up to 50% if the cutting segment 2 is fastened to the master blade 1 in an elastic, ie resilient, manner. This ensures that the diamonds of the cutting segment, which protrude from the surface of the cutting segment and are in use, are not shattered by the intermittent loading or torn out of the cutting segment.
  • the conventional arrangement of the cutting segments only 30 were used . % of the diamonds used for cutting while the rest of the diamonds were knocked out of the cutting segment.
  • With the elastic arrangement of the cutting segment it was found that the diamonds could be used up to 70% for the cutting work, while only about 30% were still shattered or knocked out of the cutting segment.
  • This elastic mounting of the cutting segments 2 on the base sheet 1 can either, as shown in FIG. 2, take place in that the cutting segments 2 are soldered onto a U-shaped bracket 5, the legs 6, 7 of which in turn with the base sheet 1 are firmly connected.
  • the web 8 connecting the legs 6, 7 is at a sufficient distance from the upper edge 9 of the main blade, so that the cutting segment 2 experiences sufficient spring travel.
  • the elasticity of the bracket can be determined on the one hand by the choice of the thickness of the bracket 8 and on the other hand by the height of the legs 6, 7.
  • the cutting segment 2 is soldered directly onto the master sheet 1 in a conventional manner.
  • this master sheet 1 has a cutout 10 below each cutting segment 2, which extends at least over the width of the cutting segment 2.
  • the resilient mounting of the cutting segment 2 is determined by the width of the recess 10 and by the height of the remaining web 11 of the master blade 1.
  • FIG. 4 shows a section through FIG. 3, which shows the arrangement of the cutting segment 2 on the master sheet 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP81102978A 1980-04-25 1981-04-17 Disque de sciage, en particulier à segments de meulage formés de concrétions diamantées Withdrawn EP0039024A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19803015930 DE3015930A1 (de) 1980-04-25 1980-04-25 Saegeblaetter
DE3015930 1980-04-25
DE3114322 1981-04-09
DE3114322 1981-04-09

Publications (1)

Publication Number Publication Date
EP0039024A1 true EP0039024A1 (fr) 1981-11-04

Family

ID=25785126

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102978A Withdrawn EP0039024A1 (fr) 1980-04-25 1981-04-17 Disque de sciage, en particulier à segments de meulage formés de concrétions diamantées

Country Status (3)

Country Link
EP (1) EP0039024A1 (fr)
FI (1) FI811273L (fr)
NO (1) NO811398L (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101953A1 (fr) * 1982-07-29 1984-03-07 Federal-Mogul Corporation Disque à découper abrasif
EP0275860A1 (fr) * 1987-01-08 1988-07-27 DIAMANT BOART Société Anonyme Lame d'armure pour le sciage de matériaux pierreux
US5184597A (en) * 1990-04-27 1993-02-09 Edward Chiuminatta Apparatus and method for cutting unhardened concrete

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE627583A (fr) *
US3156077A (en) * 1963-02-06 1964-11-10 Continental Machines Diamond edge saw blade
US3795077A (en) * 1972-12-04 1974-03-05 Norton Co Segmental cut-off grinding wheel
FR2399904A1 (fr) * 1977-08-11 1979-03-09 Winter & Sohn Ernst Scie circulaire

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE627583A (fr) *
US3156077A (en) * 1963-02-06 1964-11-10 Continental Machines Diamond edge saw blade
US3795077A (en) * 1972-12-04 1974-03-05 Norton Co Segmental cut-off grinding wheel
FR2399904A1 (fr) * 1977-08-11 1979-03-09 Winter & Sohn Ernst Scie circulaire
AT353667B (de) * 1977-08-11 1979-11-26 Winter & Sohn Ernst Kreissaege

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101953A1 (fr) * 1982-07-29 1984-03-07 Federal-Mogul Corporation Disque à découper abrasif
EP0275860A1 (fr) * 1987-01-08 1988-07-27 DIAMANT BOART Société Anonyme Lame d'armure pour le sciage de matériaux pierreux
BE1000242A4 (fr) * 1987-01-08 1988-09-20 Diamant Boart Sa Lame d'armure pour le sciage de materiaux pierreux.
US5184597A (en) * 1990-04-27 1993-02-09 Edward Chiuminatta Apparatus and method for cutting unhardened concrete
US5441033A (en) * 1990-04-27 1995-08-15 Chiuminatta; Edward Apparatus and method for cutting unhardened concrete

Also Published As

Publication number Publication date
FI811273L (fi) 1981-10-26
NO811398L (no) 1981-10-26

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19821011

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BUETTNER, RUDOLF

Inventor name: BUETTNER, WILLI