EP0355436A3 - Sawblade segments containing fine diamond or cubic boron nitride particles - Google Patents

Sawblade segments containing fine diamond or cubic boron nitride particles Download PDF

Info

Publication number
EP0355436A3
EP0355436A3 EP19890113645 EP89113645A EP0355436A3 EP 0355436 A3 EP0355436 A3 EP 0355436A3 EP 19890113645 EP19890113645 EP 19890113645 EP 89113645 A EP89113645 A EP 89113645A EP 0355436 A3 EP0355436 A3 EP 0355436A3
Authority
EP
European Patent Office
Prior art keywords
concentration
abrasion
cutting elements
resistant particles
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.)
Ceased
Application number
EP19890113645
Other languages
German (de)
French (fr)
Other versions
EP0355436A2 (en
Inventor
Thomas Clark Clark
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of EP0355436A2 publication Critical patent/EP0355436A2/en
Publication of EP0355436A3 publication Critical patent/EP0355436A3/en
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/12Saw-blades or saw-discs specially adapted for working stone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/12Cut-off wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/12Saw-blades or saw-discs specially adapted for working stone
    • B28D1/121Circular saw blades

Abstract

The object of the invention is to provide saw blades having abrasive cutter segments which will wear non-uniformly so as to provide a concave wear surface and to thereby minimize blade path deviation, i.e. lateral vibration of the saw blade.
Figure 2 illustrates a preferred embodiment of a cutting segment for use on saw blades for cutting granite, marble, filled concrete and other hard materials. As can be seen, the concentration of diamond cutting elements (1) in the centre section (2) is preferably about the same as the concentration of diamond cutting elements (1) in the side sections or matrices (3). It should be appreciated, however, that a larger or smaller concentration of diamond cutting elements (1) can be employed in the centre section (2) without departing from the spirit or intended scope of the invention. For example, it is expected that in some applications it may be desirable that the concentration of diamond cutting elements (1) in the centre section (2) be greater than the concentration of diamond cutting elements (1) in the side sections (3). The most important consideration in the practice of the invention is that a non-uniform cutting rate be achieved by including an effective amount of abrasion-resistant particles (4) in side sections (3). Saw blade segments manufactured with abrasion resistant particles (4) in side sections (3) will exhibit concave wear and will form a ridge on stone workpiece (5) as shown in Figure 2. It is the presence of this ridge which minimize the ability of the saw blade to deviate from its cutting path.
Any suitable particles may be utilized as the abrasion-resistant particles (4). However, it has been found that diamond, CBN and tungsten carbide particles are particularly effective.
In general, the abrasion-resistant particles (4) should be less than about 80 mesh. Of course, the optimum mesh size for a particular application can be determined without undue experimentation. The concentration of abrasion-resistant particles can also vary depending upon the particular application, but a concentration of from about 0.10 to about 0.35 carats per cubic centimeter has been found to be effective.
EP19890113645 1988-08-25 1989-07-25 Sawblade segments containing fine diamond or cubic boron nitride particles Ceased EP0355436A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US23658088A 1988-08-25 1988-08-25
US236580 1988-08-25

Publications (2)

Publication Number Publication Date
EP0355436A2 EP0355436A2 (en) 1990-02-28
EP0355436A3 true EP0355436A3 (en) 1990-09-05

Family

ID=22890091

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890113645 Ceased EP0355436A3 (en) 1988-08-25 1989-07-25 Sawblade segments containing fine diamond or cubic boron nitride particles

Country Status (2)

Country Link
EP (1) EP0355436A3 (en)
JP (1) JPH0276681A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910016422A (en) * 1990-03-19 1991-11-05 원본미기재 Saw
US5656045A (en) * 1995-06-07 1997-08-12 Wiand Ronald C Method of spaced distribution for diamond abrasive articles
DE19533836B4 (en) * 1995-09-13 2005-07-21 Ernst Winter & Sohn Diamantwerkzeuge Gmbh & Co. Profile grinding wheel and method and apparatus for manufacturing
CN105818278A (en) * 2016-04-22 2016-08-03 姚添龙 Efficient and energy-saving diamond saw blade and tungsten steel saw blade

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203774A (en) * 1959-05-08 1965-08-31 Vanguard Abrasive Corp Method of making an abrasive cut-off disk
DE1917957A1 (en) * 1969-04-09 1970-10-29 Pahlitzsch Dr Ing Gotthold Circular saw blade with constant ovality
DE1652480A1 (en) * 1967-11-03 1971-02-11 Willi Buettner Cutting tools for saw blades for sawing stone blocks
DE2318378A1 (en) * 1973-04-12 1974-09-19 Bronat Kg Georg DIAMOND CIRCULAR SAW BLADE FOR CUTTING ROCK
DE2438601A1 (en) * 1974-08-10 1976-02-26 Winter & Sohn Ernst Rotating cut-off tools such as slitting wheels - where hard outer layer covers diamond or boron nitride grains in binder matrix
DE3204276A1 (en) * 1982-02-08 1983-08-18 J. König GmbH & Co Werkzeugfabrik, Steinindustrie- und Handwerkerbedarf, 7500 Karlsruhe DIAMOND COATING WITH POROESE INTERIOR LAYER FOR CUTTING DISCS
EP0169081A2 (en) * 1984-04-16 1986-01-22 Sii Megadiamond, Inc. Composite polycristalline diamond

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203774A (en) * 1959-05-08 1965-08-31 Vanguard Abrasive Corp Method of making an abrasive cut-off disk
DE1652480A1 (en) * 1967-11-03 1971-02-11 Willi Buettner Cutting tools for saw blades for sawing stone blocks
DE1917957A1 (en) * 1969-04-09 1970-10-29 Pahlitzsch Dr Ing Gotthold Circular saw blade with constant ovality
DE2318378A1 (en) * 1973-04-12 1974-09-19 Bronat Kg Georg DIAMOND CIRCULAR SAW BLADE FOR CUTTING ROCK
DE2438601A1 (en) * 1974-08-10 1976-02-26 Winter & Sohn Ernst Rotating cut-off tools such as slitting wheels - where hard outer layer covers diamond or boron nitride grains in binder matrix
DE3204276A1 (en) * 1982-02-08 1983-08-18 J. König GmbH & Co Werkzeugfabrik, Steinindustrie- und Handwerkerbedarf, 7500 Karlsruhe DIAMOND COATING WITH POROESE INTERIOR LAYER FOR CUTTING DISCS
EP0169081A2 (en) * 1984-04-16 1986-01-22 Sii Megadiamond, Inc. Composite polycristalline diamond

Also Published As

Publication number Publication date
JPH0276681A (en) 1990-03-16
EP0355436A2 (en) 1990-02-28

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