EP0083380A1 - Scie diamentée - Google Patents

Scie diamentée Download PDF

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Publication number
EP0083380A1
EP0083380A1 EP19810201405 EP81201405A EP0083380A1 EP 0083380 A1 EP0083380 A1 EP 0083380A1 EP 19810201405 EP19810201405 EP 19810201405 EP 81201405 A EP81201405 A EP 81201405A EP 0083380 A1 EP0083380 A1 EP 0083380A1
Authority
EP
European Patent Office
Prior art keywords
hard materials
diamond saw
cutting hard
sintered body
saw
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.)
Ceased
Application number
EP19810201405
Other languages
German (de)
English (en)
Inventor
Jiro Inoue
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.)
Sankyo Diamond Industrial Co Ltd
Original Assignee
Sankyo Diamond Industrial Co Ltd
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 Sankyo Diamond Industrial Co Ltd filed Critical Sankyo Diamond Industrial Co Ltd
Priority to DE1981201405 priority Critical patent/DE83380T1/de
Priority to EP19810201405 priority patent/EP0083380A1/fr
Publication of EP0083380A1 publication Critical patent/EP0083380A1/fr
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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

Definitions

  • This invention relates to an improvement in a diamond saw, and more particularly in a sintered body including diamond abrasive particles embedded in a matrix.
  • Circular saw and plate-form saw are known as tools for cutting hard materials, and the circular saw has two types of continuous type (rim type) and segment type, while the plate-form saw is grouped generally into gang saw and band saw.
  • the inventor of this invention has earnestly studied to make use of the merits of the conventional articles and eliminate the demerits thereof, and as the result he has succeeded in developing the present invention.
  • the object of the invention is to provide a diamond saw for cutting hard materials, in which a steel plate is firmly fixed with a sintered body consisting of diamond abrasive granules and bonding metal powder, said sintered body including diamond abrasive particles embeded in a matrix, characterized in that a plurality of grooves having openings are provided at the edges of both the front and back side faces of said sintered body, and said grooves are arranged in zigzag phase positions.
  • the cutting ability is improved compared with the conventional articles, the cutting speed is increased, the strength of the body including abrasive granule is improved, and therefore, the body including abrasive granule is prevented from a premature tearing-off and a breaking thereby to improve the safety when in use, the abrasive granules can be used in less amount, and further the saw life can be prolonged.
  • Figs. 1 and 2 show examples of the continuous type circular saw.
  • Reference numeral (1) designates a disc made of steel
  • reference (2) is a sintered body including diamond abrasive particles embedded in a matrix.
  • Said sintered body (2) consists of a mixture of diamond abrasive particles and a bonding metal powder.
  • Reference (3) are a plurality of grooves provided at said sintered body, and these grooves (3) have openings, as shown in the drawings, at the edges of both the front and back side faces of the sintered body.
  • the outer circumferencial flange of the circular steel plate (1) is provided with a thin portion (6), and the sintered body (2) is simultaneously sintered holding said thin portion (6) from both sides. As shown in Fig.
  • said grooves (3) are arranged in zigzag phase positions.
  • the edges of said grooves are active as cutting blade thanks to the grooves in such an arrangement, and since a great number of grooves are provided the cutting ability is improved while the cutting speed increases. Further, the present saw has an excellent discharging of chips and an improved radiation efficiency so that it has an effect of causing no choking in the saw surface.
  • said thin portion (6) is provided with a plurality of piercing orifices (7) which have optional shape and dimension, and in fixing the sintered body the sintered blades of both the front and back sides are simultaneously sintered in integrity thereby to be useful for increasing the Strength.
  • Fig. 4 shows a modification of the thin portion (6), a portion of which is replaced by a wire-netting (8) whereby the sintered body (2) is more integrated.
  • reference (5) designates a radial, corrugated portion provided in the circular steel plate (1), such provision of the corrugated portion enhances the strength of the circular steel plate, and therefore it becomes possible to lower the cost by using steel plate thiner than conventional articles. Furthermore, by constructing the saw in such a manner that the direction of said radial, corrugated shape is radial not including the center of the disc it is possible to further enhance the strength of said disc.
  • the saw can be a segment type circular saw as shown in Figs. 5 and 6.
  • reference (10) is an arcuate segment, and one previously sintered as segment is used.
  • the arranging positions of the grooves (3) are in zigzag phase in both the front and back sides as in the example of Figs. 1 and 2.
  • the outer circumferencial flange of the circular steel plate (1) is not provided with a thin portion, and,the arcuate segment is directly fixed by brazing to the outer periphery (9) of said steel plate as in conventional articles, but it is preferable to arrange a reinforcing, perforated thin plate or a wire-netting (11; as shown- in Fig. 6, at the center of the arcuate segment.
  • the function and effect of said reinforcing, perforated thin plate or said wire-netting are same as the examples of Figs. 3 and 4.
  • Figs. 7 and 8 shows an example in which the present invention is applied to a plate-form saw, i.e. band saw or gang saw.
  • each segment (12) is rectilinear and the grooves (3) are arrenged in zigzag phase in both the front and back sides of the segment.
  • This segment (12) is sintered in such a state that a reinforcing, perforated plate or a wire-netting (13) is held therewithin, and it is all right to secure the segment (12) to the base plate (1) by brazing means as in known articles.
  • Figs. 9 and 10 show graphs of comparison between the present saw and the conventional saws, and they show the results in which the present saw and the conventional saws are compared under the following conditions:
  • the abrasive loss of the present article B is less than about 60% of the conventional article A, while as clear from Fig. 10, even if the cutting depth is enlarged the present article does not increase the power consumption. That is, it will be evident the present article is superior in cutting ability over the conventional article.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP19810201405 1981-12-30 1981-12-30 Scie diamentée Ceased EP0083380A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1981201405 DE83380T1 (de) 1981-12-30 1981-12-30 Diamant-gesteinssaege.
EP19810201405 EP0083380A1 (fr) 1981-12-30 1981-12-30 Scie diamentée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19810201405 EP0083380A1 (fr) 1981-12-30 1981-12-30 Scie diamentée

Publications (1)

Publication Number Publication Date
EP0083380A1 true EP0083380A1 (fr) 1983-07-13

Family

ID=8188180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810201405 Ceased EP0083380A1 (fr) 1981-12-30 1981-12-30 Scie diamentée

Country Status (2)

Country Link
EP (1) EP0083380A1 (fr)
DE (1) DE83380T1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0612586A1 (fr) * 1993-02-15 1994-08-31 Firma August Rüggeberg Disque abrasif pour meuleuse portative, en particulier disque de trançonnage
EP0657251A1 (fr) * 1993-11-11 1995-06-14 Firma August Rüggeberg Disque abrasif de tronçonnage pour meuleuse stationnaire et sa mise en oeuvre
US5876274A (en) * 1996-12-27 1999-03-02 Sankyo Diamond Industrial Co., Ltd. Corrugated electrodeposited diamond wheel
EP0832720A3 (fr) * 1993-02-15 2000-12-13 August Rüggeberg GmbH & Co Disque de meulage pour meuleuse portative, en particulier disque de tronçonnage
EP1254732A1 (fr) * 2001-01-11 2002-11-06 Shiga Yamashita Co., Ltd. Appareil à sectionner
JP2018192554A (ja) * 2017-05-16 2018-12-06 株式会社ディスコ 切削工具

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE606001C (de) * 1932-07-19 1934-11-23 Emil Motl Schneid- und Schleifscheibe mit einem scheibenfoermigen Traeger aus Metall
US2092591A (en) * 1935-08-17 1937-09-07 Norton Co Grinding wheel
FR1128866A (fr) * 1955-02-04 1957-01-11 C A I Costruzioni Alta Italia âme en tôle pour meule
US2811960A (en) * 1957-02-26 1957-11-05 Fessel Paul Abrasive cutting body
FR1232580A (fr) * 1958-06-11 1960-10-10 Diamant Boart Sa Procédé pour le profilage des disques diamantés et disques obtenus par ce procédé
GB938680A (en) * 1961-12-11 1963-10-02 Christensen Diamond Prod Co Improvements relating to abrasive cutting devices
GB1075998A (en) * 1964-11-25 1967-07-19 Frederick Waldemar Lindblad Improvements in or relating to circular saws
DD122794A1 (fr) * 1975-12-22 1976-11-05

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE606001C (de) * 1932-07-19 1934-11-23 Emil Motl Schneid- und Schleifscheibe mit einem scheibenfoermigen Traeger aus Metall
US2092591A (en) * 1935-08-17 1937-09-07 Norton Co Grinding wheel
FR1128866A (fr) * 1955-02-04 1957-01-11 C A I Costruzioni Alta Italia âme en tôle pour meule
US2811960A (en) * 1957-02-26 1957-11-05 Fessel Paul Abrasive cutting body
FR1232580A (fr) * 1958-06-11 1960-10-10 Diamant Boart Sa Procédé pour le profilage des disques diamantés et disques obtenus par ce procédé
GB938680A (en) * 1961-12-11 1963-10-02 Christensen Diamond Prod Co Improvements relating to abrasive cutting devices
GB1075998A (en) * 1964-11-25 1967-07-19 Frederick Waldemar Lindblad Improvements in or relating to circular saws
DD122794A1 (fr) * 1975-12-22 1976-11-05

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
INDUSTRIE-ANZEIGER, Vol. 93, No. 59, 16 July 1981, Essen. W.H. KARSTEN "Einfl uss von Aufspannexzentrizit{t und Makrogestalt eines Kreiss{geblattes beim S{gen von Glas" pages 1473, 1474 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0612586A1 (fr) * 1993-02-15 1994-08-31 Firma August Rüggeberg Disque abrasif pour meuleuse portative, en particulier disque de trançonnage
US5584755A (en) * 1993-02-15 1996-12-17 August Ruggeberg Abrasive wheel for hand-guided grinding machines, in particular abrasive cutting-off wheel
EP0832720A3 (fr) * 1993-02-15 2000-12-13 August Rüggeberg GmbH & Co Disque de meulage pour meuleuse portative, en particulier disque de tronçonnage
EP0657251A1 (fr) * 1993-11-11 1995-06-14 Firma August Rüggeberg Disque abrasif de tronçonnage pour meuleuse stationnaire et sa mise en oeuvre
US5876274A (en) * 1996-12-27 1999-03-02 Sankyo Diamond Industrial Co., Ltd. Corrugated electrodeposited diamond wheel
EP1254732A1 (fr) * 2001-01-11 2002-11-06 Shiga Yamashita Co., Ltd. Appareil à sectionner
JP2018192554A (ja) * 2017-05-16 2018-12-06 株式会社ディスコ 切削工具

Also Published As

Publication number Publication date
DE83380T1 (de) 1984-02-16

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

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Effective date: 19820104

AK Designated contracting states

Designated state(s): DE FR GB IT NL

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Designated state(s): DE FR GB IT NL

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Representative=s name: KOHLER FONTANA

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DET De: translation of patent claims
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Owner name: SANKYO DIAMOND INDUSTRIAL CO., LTD.

RIN1 Information on inventor provided before grant (corrected)

Inventor name: INOUE, JIRO

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