EP0043136B1 - Meule de tronçonnage pourvue de segments - Google Patents

Meule de tronçonnage pourvue de segments Download PDF

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Publication number
EP0043136B1
EP0043136B1 EP81105044A EP81105044A EP0043136B1 EP 0043136 B1 EP0043136 B1 EP 0043136B1 EP 81105044 A EP81105044 A EP 81105044A EP 81105044 A EP81105044 A EP 81105044A EP 0043136 B1 EP0043136 B1 EP 0043136B1
Authority
EP
European Patent Office
Prior art keywords
core
cutting
segment
segments
periphery
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.)
Expired
Application number
EP81105044A
Other languages
German (de)
English (en)
Other versions
EP0043136A1 (fr
Inventor
Klemens Mühlbauer
Dieter Dr. Dipl.-Chem. Regler
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.)
Heliotronic Forschungs- und Entwicklungsgesellschaft fur Solarzellen-Grundstoffe Mbh
Original Assignee
Heliotronic Forschungs- und Entwicklungsgesellschaft fur Solarzellen-Grundstoffe Mbh
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 Heliotronic Forschungs- und Entwicklungsgesellschaft fur Solarzellen-Grundstoffe Mbh filed Critical Heliotronic Forschungs- und Entwicklungsgesellschaft fur Solarzellen-Grundstoffe Mbh
Priority to AT81105044T priority Critical patent/ATE5464T1/de
Publication of EP0043136A1 publication Critical patent/EP0043136A1/fr
Application granted granted Critical
Publication of EP0043136B1 publication Critical patent/EP0043136B1/fr
Expired 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 circular, segmented cutting disks with a constant distance between adjacent segments over the entire segment height and relaxation bores leading to the core in the manner of slots.
  • segmented cutting discs with slots, bores and the like leading from the core edge into the core interior, the function of which essentially consists in compensating for the thermal loads which occur locally when the segments are soldered onto the core and in preventing material deformations.
  • segment cutting disks such expansion bores are each installed between two adjacent segments.
  • the two lateral, non-curved boundaries within a segment are either parallel (cf. FIG. 2) or arranged so that the distance between adjacent segments is constant over the entire segment height (cf. US-A-3,069,816 ).
  • the object of the invention was to develop cutting discs which allow the dimensionally accurate cutting of hard and brittle materials, in particular elemental silicon, even with large-scale dimensional cuts, without having to accept the disadvantages described above.
  • FIG. 3 shows the partial cross section in the area 111-111 of FIG. 4 of a preferred embodiment of a cutting disc according to the invention.
  • the flanks 6 of the segments 1 are preferably ground. From a technical point of view, relief grinding angles a of 0 to 1 ° are preferred, 35 to 48 minutes are preferred.
  • the segments 1 protrude axially with a projection A on both sides over the cutting wheel core 2.
  • Figure 4 shows a side view of a cutting disc according to the invention in a detail.
  • the expansion bores 7 leading to the outside of the core in the manner of slots are made within the segments 1. They are in the middle of segment 1, i.e. half the segment length.
  • the cutting disks can also have less symmetry than shown in FIG. 4.
  • a lower symmetry can be achieved by using the following measures, individually or in combination.
  • cut-out disks according to the invention of less symmetry are sketched, which are especially adapted to reduce the noise development during the cutting process.
  • the expansion bores are arranged within a segment 1, but offset by (B) with respect to the center (M) of the segment.
  • the scope for the transfer is within 1/20 to 1/2 of the segment length.
  • FIG. 6 shows a cutting disc according to the invention with alternating segment lengths L ,, L 2 .
  • the segment lengths L "L 2 are usually between 15 and 60 mm, the segment height H up to 10 mm, but usually up to 5 mm.
  • the spacing 5 of the segments is between 0.5 and 5 mm, it being possible for 1/50 to 1/800, preferably 1/100 to 1/400 of the disk diameter D to define the relationship of the segment spacing to the disk size.
  • the slot width 10 of the expansion holes 7 is between 0.01 and 5 mm, preferably about 0.5 mm.
  • the diameter 11 of the expansion bores 7 can be up to 5 mm, the lower limit naturally representing the slot width.
  • the slot depth 12 is 1/10 to 1/40, preferably 1/15 to 1/20 of the disk diameter, depending on the disk size.
  • cutting discs according to the invention are especially adapted to the requirements of large-area dimensional cuts
  • cutting discs according to the invention can have a diameter of 1800 mm, for example.
  • the core is formed from materials that have previously been used to manufacture cutting discs. Steel with a Rockwell hardness of 40 to 45 is preferred for the separation of elemental silicon.
  • the cutting discs according to the invention have proven particularly useful for large-scale dimensional cuts on hard and brittle materials with immersion depths above 140 mm.
  • these cutting discs are, however, also suitable for smaller dimensional cuts in which, in principle, full-length cutting discs can still be used, compared to which the cutting discs according to the invention, however, are distinguished by longer service lives due to better cooling of the cutting face.
  • the dressing intervals could be extended considerably compared to standard segment saws: average cutting performance of 3.8 m 2 compared to 1.3 m 2 for standard models was achieved when cutting elemental silicon.
  • the cutting discs according to the invention meet the current occupational safety requirements due to the significantly reduced noise during the sawing process.

Claims (5)

1. Meule tronçonneuse circulaire segmentée, présentant sur toute la hauteur des segments un espacement constant (5) entre segments voisins (1) et des perforations de détente (7) conduisant sous forme de fentes à l'extérie ur du coeur, caractérisée par le fait que chaque perforation de détente (7) conduisant à l'extérieur du coeur est située à intérieur d'un segment (1).
2. Meule selon la revendication 1, caractérisée en ce que les flancs (6) des segments sont en dépouille.
3. Meule selon les revendications 1 et 2, caractérisée en ce que la meule tronçonneuse présente des segments (1', 1") de différente longueur.
4. Meule selon l'une quelconque des revendications 1 à 3, caractérisée en ce que les perforations de détente (7) conduisant sous forme de fentes à l'extérieur du coeur sont disposées avec décalage relativement au centre du segment.
5. Application de meules tronçonneuses selon les revendications 1 à 4 au tronçonnage du silicium élémentaire.
EP81105044A 1980-07-01 1981-06-30 Meule de tronçonnage pourvue de segments Expired EP0043136B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81105044T ATE5464T1 (de) 1980-07-01 1981-06-30 Segmentierte trennscheibe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3024850 1980-07-01
DE19803024850 DE3024850A1 (de) 1980-07-01 1980-07-01 Segmentierte trennscheibe

Publications (2)

Publication Number Publication Date
EP0043136A1 EP0043136A1 (fr) 1982-01-06
EP0043136B1 true EP0043136B1 (fr) 1983-11-30

Family

ID=6106112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81105044A Expired EP0043136B1 (fr) 1980-07-01 1981-06-30 Meule de tronçonnage pourvue de segments

Country Status (5)

Country Link
EP (1) EP0043136B1 (fr)
JP (1) JPS5715675A (fr)
AT (1) ATE5464T1 (fr)
DE (2) DE3024850A1 (fr)
ES (1) ES267746Y (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3225019A1 (de) * 1982-07-05 1984-01-05 Fa. Röttger Jansen-Herfeld, 5630 Remscheid Werkzeug mit schrumpfungsschlitz
JPS62110864U (fr) * 1985-12-27 1987-07-15
DE3629894A1 (de) * 1986-08-29 1988-03-03 Mannesmann Ag Anlage zur oberflaechenbehandlung von kontinuierlich durchlaufenden baendern, insbesondere beizanlage
JPS63158716U (fr) * 1987-04-01 1988-10-18
US6422229B1 (en) * 2000-06-29 2002-07-23 Advanced Micro Devices, Inc. Saw blade for cutting integrated circuit package boards
DE102013003233B4 (de) * 2013-02-27 2018-01-04 Tutech Innovation Gmbh Verfahren zum Herstellen von einfach oder mehrfach gekurvten Konturen sowie ein entsprechendes Werkzeug

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2818850A (en) * 1955-07-06 1958-01-07 Cons Diamond Tool Corp Cut off blades for abrasive bodies and their production
US2815746A (en) * 1957-04-10 1957-12-10 Cons Diamond Tool Corp Cut-off blades for abrasive bodies and their production
US3069816A (en) * 1959-04-22 1962-12-25 Vanguard Abrasive Corp Abrasive cut-off disks
US3863401A (en) * 1971-06-16 1975-02-04 Ferro Corp Diamond abrasive cut-off wheel
US3763601A (en) * 1972-05-15 1973-10-09 Ferro Corp Diamond abrasive cut-off wheel
AT316343B (de) * 1972-05-15 1974-07-10 Swarovski Tyrolit Schleif Trägerkörper für Segmentschleifscheiben
US3795078A (en) * 1972-11-01 1974-03-05 Norton Co Segmental cut-off wheel

Also Published As

Publication number Publication date
DE3161548D1 (en) 1984-01-05
JPS613631B2 (fr) 1986-02-03
EP0043136A1 (fr) 1982-01-06
DE3024850A1 (de) 1982-01-28
ES267746U (es) 1983-04-01
JPS5715675A (en) 1982-01-27
ATE5464T1 (de) 1983-12-15
ES267746Y (es) 1983-10-16

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