EP0648576A1 - Abrasive lining for abrasive tool and its manufacturing process - Google Patents

Abrasive lining for abrasive tool and its manufacturing process Download PDF

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Publication number
EP0648576A1
EP0648576A1 EP94115711A EP94115711A EP0648576A1 EP 0648576 A1 EP0648576 A1 EP 0648576A1 EP 94115711 A EP94115711 A EP 94115711A EP 94115711 A EP94115711 A EP 94115711A EP 0648576 A1 EP0648576 A1 EP 0648576A1
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EP
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Prior art keywords
grinding
abrasive
diamond
bonded
cbn
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Granted
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EP94115711A
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German (de)
French (fr)
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EP0648576B1 (en
Inventor
Robert Benguerel
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Diametal AG
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Diametal AG
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    • 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
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/14—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
    • 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
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
    • 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
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
    • B24D3/28—Resins or natural or synthetic macromolecular compounds

Definitions

  • the present invention relates to an abrasive coating for grinding tools, in particular grinding wheels.
  • grinding tools are customary which have so-called hot-pressed or pressure-free sintered hard abrasives with synthetic resin or metal or ceramic or the like Diamond or CBN (cubic crystalline boron nitride), which are effective as a hard, abrasion-resistant abrasive grain.
  • Such grinding tools result in only very small chip spaces, so that the grinding wheel clogs quickly and has to be re-profiled or dressed; apart from the other signs of wear and tear, in particular due to the unfavorable grinding temperature distribution in the synthetic resin or ceramic abrasive coating.
  • abrasive coating according to the invention permits a segment-free, that is to say continuous and thin coating on a grinding wheel body, which leads to simpler production and permits a higher load capacity of the wheel. Since the covering is also comparatively specifically lighter and more homogeneous, such a grinding wheel tends to be less unbalanced and has a vibration-damping effect.
  • the high mechanical strength and the good bond with the metallic support create the best conditions for use in the field of high-speed grinding.
  • abrasive coating which is essential to the invention, can also be seen if the diamond or CBN grain size MD20 (20 microns) to D301 (50/60 mesh) or MB20 (20 microns) to B 427 (40/50 mesh).
  • the grinding lug size resulting from the granulation of the metal or ceramic bonded, hot-pressed or pressure-free sintered abrasive with diamond or CBN grain should be 1/4 to 3 mm. It is advantageous if the diamond or. CBN concentration in the grinding tunnel does not exceed 8.8 carats per cubic centimeter (FEPA K200 or 480V). Furthermore, the volume fraction of the grinding lugs in the grinding surface should be approx. 30 to 60%.
  • the present invention relates to a method for producing the abrasive coating according to the invention for abrasive tools, in particular grinding wheels.
  • this method is distinguished by the fact that grinding lugs are formed from a hot-pressed or pressure-free sintered, metallic or ceramic-bonded grinding granulate with diamond or CBN grain, and this bound with a synthetic resin binder and applied to a carrier.
  • Hiebei can use grinding pellets in the form of micropellets from 0.2 to 3mm or grinding pellets obtained by granulating existing or recyclable hot-pressed or pressure-free sintered, metallic or ceramic-bonded grinding pads with diamond or CBN grit.
  • the present invention relates to a grinding wheel, produced by the method according to the invention.
  • the known grinding pad 10 shown in FIG. 1 comprises an abrasive with diamond or CBN grain 11, which is embedded in a synthetic resin or metallic or ceramic bond matrix 12 and is connected to the abrasive coating 10 by hot pressing or pressure-free sintering.
  • Grain and binder can be present as desired in the abrasive coating 10 and can also contain additives such as support grain, fillers, lubricants and plasticizers.
  • such an abrasive coating in granular form is now used as a grinding stud 13 for a completely new abrasive coating 14 (FIG. 2), these grinding studs 13 being bound by means of synthetic resin binders 15 and being applied to a carrier (grinding wheel or the like; not shown in more detail) .
  • Hiebei can, as already mentioned, a grinding granulate in the form of micropellets of 0.2 to 3 mm or a granulation of existing or recyclable hot-pressed or pressure-free sintered, metallic or ceramic-bonded grinding surfaces of the aforementioned type with diamond or CBN for the grinding lugs 13 Grain-derived grinding granules can be used.
  • a comparison of the abrasive coatings from FIGS. 1 and 2 shows that in the inventive abrasive coating according to FIG. 2, significantly larger chip spaces 162 are formed compared to the chip spaces 161 in FIG. 1.
  • FIG. 2 shows that a better course of the grinding temperature can be achieved by incorporating grinding studs 13 formed from the starting granulate by distributing them within the grinding studs and thereby protecting the binding matrix 15.

Abstract

The abrasive lining for abrasive tools, especially abrasive wheels, comprises resin-bonded grinding studs formed by granulation or the like of metallic- or ceramic-bonded or similarly bonded, hot-pressed or pressureless-sintered abrasive with diamond or CBN grit. An abrasive wheel with such an abrasive lining is distinguished in particular by large chip spaces, high abrasion resistance, self-sharpening, higher loadability and direct connection of the abrasive lining to the carrier, inter alia. <IMAGE>

Description

Die vorliegende Erfindung betrifft einen Schleifbelag für Schleifwerkzeuge, insbesondere Schleifscheiben.The present invention relates to an abrasive coating for grinding tools, in particular grinding wheels.

Für insbesondere schwer zu schleifende Werkstoffe, wie Sinterhartmetalle, Steinwerkstoffe, Glas u.a., aber auch für Edelstähle, Grundstähle, Nichteisenmetalle und deren Legierungen u.dgl. sind Schleifwerkzeuge, insbesondere Schleifscheiben üblich, welche sog. heissgepresste oder druckfrei gesinterte Hartschleifmittel aufweisen mit kunstharz- oder metallisch oder keramisch o. dgl. gebundenem Diamant oder CBN (kubisch kristallines Bornitrid), welche als hartes, abriebsbeständiges Schleifmittelkorn wirksam sind.For particularly difficult-to-grind materials such as sintered hard metals, stone materials, glass, etc., but also for stainless steels, basic steels, non-ferrous metals and their alloys and the like. grinding tools, in particular grinding wheels, are customary which have so-called hot-pressed or pressure-free sintered hard abrasives with synthetic resin or metal or ceramic or the like Diamond or CBN (cubic crystalline boron nitride), which are effective as a hard, abrasion-resistant abrasive grain.

Bedingt durch die zweckdienliche Bindung, die Korngrösse, den Kornfreistand u.a. ergeben sich bei solchen Schleifwerkzeugen, insbesondere Schleifscheiben, aber nur sehr kleine Spanräume, sodass die Schleifscheibe schnell zusetzt und neu profiliert bzw. abgerichtet werden muss; abgesehen der sonstigen Verschleisserscheinungen insbesondere durch die hier ungünstige Schleiftemperatur-Verteilung im Kunstharz- oder Keramik-Schleifbelag.Due to the appropriate binding, the grain size, the grain clearance, etc. Such grinding tools, in particular grinding wheels, result in only very small chip spaces, so that the grinding wheel clogs quickly and has to be re-profiled or dressed; apart from the other signs of wear and tear, in particular due to the unfavorable grinding temperature distribution in the synthetic resin or ceramic abrasive coating.

Es ist deshalb Aufgabe der vorliegenden Erfindung, einen Schleifbelag der vorgenannten Art zu schaffen, der die erwähnten Nachteile der Schleifbeläge des Standes der Technik vermeidet und sich insbesondere auszeichnet durch grosse Spanräume, hohe Abriebsfestigkeit, Selbstschärfung, höhere Belastbarkeit der Schleifscheibe, direkte Verbindung des Schleifbelages mit dem Träger u.a.It is therefore an object of the present invention to provide an abrasive pad of the aforementioned type which avoids the disadvantages of the abrasive pads of the prior art and is characterized in particular by large chip spaces, high abrasion resistance, self-sharpening, greater resilience of the grinding wheel, direct connection of the abrasive pad to the carrier and others

Dies wird erfindungsgemäss erreicht durch kunstharzgebundene, durch Granulieren o.dgl. von metallisch oder keramisch o.dgl. gebundenem, heissgepresstem oder druckfrei gesintertem Schleifmittel mit Diamant- oder CBN-Korn gebildete Schleifstollen.This is achieved according to the invention by synthetic resin-bound, by granulation or the like. of metallic or ceramic or the like. bound, hot-pressed or pressure-free sintered abrasive with diamond or CBN grit.

Hierbei lässt das unterschiedliche Verschleissverhalten zwischen der durch die Stollen gebildeten abriebsfesten Schleifzone und der "weichen" Kunstharz-Bindematrix die Ausbildung grosser Spanräume zu. Ferner wurde festgestellt, dass sich eine solche Schleifscheibe stets von selbst schärft resp. abrichtet und diese sich damit in idealer Weise via Bindungserosion selbst an das anfallende Spanvolumen anpasst.The different wear behavior between the abrasion-resistant grinding zone formed by the studs and the "soft" synthetic resin binding matrix allows large chip spaces to be formed. It was also found that such a grinding wheel always sharpens itself. and this adapts itself ideally to the resulting chip volume via bond erosion.

Zudem lässt ein solcher erfindungsgemässer Aufbau des Schleifbelages einen segmentfreien, also durchgehenden und dünnen Belag auf einem Schleifscheibenkörper zu, was zu einer einfacheren Fertigung führt und eine höhere Belastbarkeit der Scheibe gestattet. Da der Belag zudem vergleichsweise spezifisch leichter und homogener ist, neigt eine solche Schleifscheibe zu weniger Unwucht und wirkt vibrationsdämpfend.In addition, such a construction of the abrasive coating according to the invention permits a segment-free, that is to say continuous and thin coating on a grinding wheel body, which leads to simpler production and permits a higher load capacity of the wheel. Since the covering is also comparatively specifically lighter and more homogeneous, such a grinding wheel tends to be less unbalanced and has a vibration-damping effect.

Insbesondere aber die hohe mechanische Belastbarkeit und die gute Bindung mit dem metallischen Träger schaffen beste Voraussetzungen für den Einsatz im Bereich des Hochgeschwindigkeitsschleifens.In particular, however, the high mechanical strength and the good bond with the metallic support create the best conditions for use in the field of high-speed grinding.

Eine erfindungswesentliche Ausgestaltung des Schleifbelages kann zudem darin gesehen werden, wenn die Diamant- oder CBN-Korngrösse MD20 (20 Mikron) bis D301 (50/60 Mesh) resp. MB20 (20 Mikron) bis B 427 (40/50 Mesh) beträgt. Die sich aus dem Granulieren des metallisch oder keramisch gebundenen, heissgepressten oder druckfrei gesinterten Schleifmittels mit Diamant- oder CBN-Korn ergebende Schleifstollengrösse sollte 1/4 bis 3mm betragen. Hierbei ist es von Vorteil, wenn die Diamant- resp. CBN-Konzentration in der Schleifstolle 8,8 Karat pro Kubikcentimeter (FEPA K200 resp. 480V) nicht übersteigt. Weiter sollte der Volumenanteil der Schleifstollen im Schleifbelag ca. 30 bis 60% betragen.An embodiment of the abrasive coating, which is essential to the invention, can also be seen if the diamond or CBN grain size MD20 (20 microns) to D301 (50/60 mesh) or MB20 (20 microns) to B 427 (40/50 mesh). The grinding lug size resulting from the granulation of the metal or ceramic bonded, hot-pressed or pressure-free sintered abrasive with diamond or CBN grain should be 1/4 to 3 mm. It is advantageous if the diamond or. CBN concentration in the grinding tunnel does not exceed 8.8 carats per cubic centimeter (FEPA K200 or 480V). Furthermore, the volume fraction of the grinding lugs in the grinding surface should be approx. 30 to 60%.

Ferner betrifft die vorliegende Erfindung ein Verfahren zur Herstellung des erfindungsgemässen Schleifbelages für Schleifwerkzeuge, insbesondere Schleifscheiben. Dieses Verfahren zeichnet sich erfindungsgemäss dadurch aus, dass aus einem heissgepressten oder druckfrei gesinterten, metallisch oder keramisch gebundenen Schleifgranulat mit Diamant- oder CBN-Korn Schleifstollen gebildet sowie diese mittels Kunstharzbinder gebunden und auf einen Träger aufgebracht werden.Furthermore, the present invention relates to a method for producing the abrasive coating according to the invention for abrasive tools, in particular grinding wheels. According to the invention, this method is distinguished by the fact that grinding lugs are formed from a hot-pressed or pressure-free sintered, metallic or ceramic-bonded grinding granulate with diamond or CBN grain, and this bound with a synthetic resin binder and applied to a carrier.

Hiebei kann für die Schleifstollen ein Schleifgranulat in Form von Mikropellets von 0,2 bis 3mm oder ein durch Granulierung von bestehenden oder recyclefähigen heissgepressten oder druckfrei gesinterten, metallisch oder keramisch gebundenen Schleifbelägen mit Diamant- oder CBN-Korn gewonnenes Schleifgranulat verwendet werden.Hiebei can use grinding pellets in the form of micropellets from 0.2 to 3mm or grinding pellets obtained by granulating existing or recyclable hot-pressed or pressure-free sintered, metallic or ceramic-bonded grinding pads with diamond or CBN grit.

Ferner betrifft die vorliegende Erfindung eine Schleifscheibe, hergestellt nach dem erfindungsgemässen Verfahren.Furthermore, the present invention relates to a grinding wheel, produced by the method according to the invention.

Eine beispielsweise Ausführungsform des Erfindungsgegenstandes ist nachfolgend anhand der Zeichnung näher erläutert. Es zeigen:

Fig. 1
das Innengefüge eines Schleifbelages einer Schleifscheibe nach dem Stand der Technik; und
Fig. 2
das Innengefüge des erfindungsgemässen Schleifbelages einer Schleifscheibe.
An example embodiment of the subject matter of the invention is explained in more detail below with reference to the drawing. Show it:
Fig. 1
the internal structure of a grinding surface of a grinding wheel according to the prior art; and
Fig. 2
the internal structure of the grinding surface of a grinding wheel according to the invention.

Der in Fig. 1 dargestellte, ansich bekannte Schleifbelag 10 umfasst ein Schleifmittel mit Diamant- oder CBN-Korn 11, welches in einer kunzharz- oder metallischen oder keramischen Bindungsmatrix 12 eingebettet und durch Heisspressen oder druckfreiem Sintern zum Schleifbelag 10 verbunden ist.The known grinding pad 10 shown in FIG. 1 comprises an abrasive with diamond or CBN grain 11, which is embedded in a synthetic resin or metallic or ceramic bond matrix 12 and is connected to the abrasive coating 10 by hot pressing or pressure-free sintering.

Korn und Binder können dabei im Schleifbelag 10 ansich beliebig vorhanden sein und zudem Zusätze, wie Stützkorn, Füllstoffe, Schmierstoffe und Weichmacher enthalten.Grain and binder can be present as desired in the abrasive coating 10 and can also contain additives such as support grain, fillers, lubricants and plasticizers.

Erfindungsgemäss wird nun ein solcher Schleifbelag in granularer Form als Schleifstollen 13 für einen völlig neuen Schleifbelag 14 (Fig. 2) verwendet, wobei diese Schleifstollen 13 mittels Kunstharzbinder 15 gebunden und auf einen Träger (Schleifscheibe o. dgl.; nicht näher gezeigt) aufgebracht werden.According to the invention, such an abrasive coating in granular form is now used as a grinding stud 13 for a completely new abrasive coating 14 (FIG. 2), these grinding studs 13 being bound by means of synthetic resin binders 15 and being applied to a carrier (grinding wheel or the like; not shown in more detail) .

Hiebei kann, wie bereits erwähnt, für die Schleifstollen 13 ein Schleifgranulat in Form von Mikropellets von 0,2 bis 3mm oder ein durch Granulierung von bestehenden oder recyclefähigen heissgepressten oder druckfrei gesinterten, metallisch oder keramisch gebundenen Schleifbelägen der vorgenannten Art mit Diamant- oder CBN-Korn gewonnenes Schleifgranulat verwendet werden.Hiebei can, as already mentioned, a grinding granulate in the form of micropellets of 0.2 to 3 mm or a granulation of existing or recyclable hot-pressed or pressure-free sintered, metallic or ceramic-bonded grinding surfaces of the aforementioned type with diamond or CBN for the grinding lugs 13 Grain-derived grinding granules can be used.

Eine Gegenüberstellung der Schleifbeläge von Fig.1 und Fig.2 zeigt, dass beim erfindungsgemässen Schleifbelag gemäss Fig.2 wesentlich grössere Spanräume 162 ausgebildet sind vergleichsweise den Spanräumen 161 in Fig.1.A comparison of the abrasive coatings from FIGS. 1 and 2 shows that in the inventive abrasive coating according to FIG. 2, significantly larger chip spaces 162 are formed compared to the chip spaces 161 in FIG. 1.

Die betreffenden Vorteile wurden bereits einleitend erwähnt, ebenso die Korngrössen und Volumenanteile.The relevant advantages have already been mentioned in the introduction, as have the grain sizes and volume fractions.

Weiter lässt die Darstellung gemäss Fig.2 erkennen, dass mit dem Einbinden von aus dem Ausgangsgranulat gebildeten Schleifstollen 13 ein besserer Verlauf der Schleiftemperatur erzielbar ist, indem diese sich innerhalb der Schleifstollen verteilt und dadurch die Bindematrix 15 geschont wird.Furthermore, the representation according to FIG. 2 shows that a better course of the grinding temperature can be achieved by incorporating grinding studs 13 formed from the starting granulate by distributing them within the grinding studs and thereby protecting the binding matrix 15.

Weiter ist erkennbar, dass nur die Stollen 13 auf dem Werkstück reiben, was sich vorteilhaft auf die Lebensdauer eines solchen Belages auswirkt.It can also be seen that only the cleats 13 rub on the workpiece, which has an advantageous effect on the service life of such a covering.

Selbstverständlich ist es auch denkbar und durchaus im Rahmen der Erfindung, als Schleifmittel andere dem Diamant oder dem CBN vergleichbare Hartstoffe einzubauen.Of course, it is also conceivable and within the scope of the invention to incorporate other hard materials comparable to diamond or CBN as abrasives.

Claims (9)

Schleifbelag für Schleifwerkzeuge, insbesondere Schleifscheiben, gekennzeichnet durch kunstharzgebundene, durch Granulieren o.dgl. von metallisch oder keramisch o.dgl. gebundenem, heissgepresstem oder druckfrei gesintertem Schleifmittel mit Diamant- oder CBN-Korn gebildete Schleifstollen.Grinding surface for grinding tools, in particular grinding wheels, characterized by synthetic resin-bound, by granulating or the like. of metallic or ceramic or the like. bonded, hot-pressed or pressure-free sintered abrasive with diamond or CBN grit. Schleifbelag nach Anspruch 1, dadurch gekennzeichnet, dass die Diamant- oder CBN-Korngrösse MD20 (20 Mikron) bis D301 (50/60 Mesh) resp. MB20 (20 Mikron) bis B 427 (40/50 Mesh) beträgt.Grinding surface according to claim 1, characterized in that the diamond or CBN grain size MD20 (20 microns) to D301 (50/60 mesh) resp. MB20 (20 microns) to B 427 (40/50 mesh). Schleifbelag nach Anspruch 2, dadurch gekennzeichnet, dass die sich aus dem Granulieren des metallisch oder keramisch gebundenen, heissgepressten oder druckfrei gesinterten Schleifmittels mit Diamant- oder CBN-Korn ergebende Schleifstollengrösse ca. 1/4 bis 3mm beträgt.Abrasive coating according to claim 2, characterized in that the grinding lug size resulting from the granulation of the metallically or ceramically bonded, hot-pressed or pressure-free sintered abrasive with diamond or CBN grain is approximately 1/4 to 3 mm. Schleifbelag nach Anspruch 3, dadurch gekennzeichnet, dass die Diamant- resp. CBN-Konzentration in der Schleifstolle 8,8 Karat pro Kubikcentimeter (FEPA K200 resp. 480V) nicht übersteigt.Grinding surface according to claim 3, characterized in that the diamond or. CBN concentration in the Grinding stud does not exceed 8.8 carats per cubic centimeter (FEPA K200 or 480V). Schleifbelag nach Anspruch 1 oder 3, dadurch gekennzeichnet, dass der Volumenanteil der Schleifstollen im Schleifbelag ca. 30 bis 60% beträgt.Grinding surface according to claim 1 or 3, characterized in that the volume fraction of the grinding lugs in the grinding surface is approximately 30 to 60%. Verfahren zur Herstellung des Schleifbelages für Schleifwerkzeuge, insbesondere Schleifscheiben, nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, dass aus einem heissgepressten oder druckfrei gesinterten, metallisch oder keramisch gebundenen Schleifgranulat mit Diamant- oder CBN-Korn Schleifstollen gebildet, diese mittels Kunstharzbinder gebunden und auf einen Träger aufgebracht werden.Process for the production of the abrasive coating for grinding tools, in particular grinding wheels, according to claims 1 to 5, characterized in that grinding studs are formed from a hot-pressed or pressure-free sintered, metal or ceramic bonded grinding granulate with diamond or CBN grain, these are bonded by means of synthetic resin binders and applied a carrier can be applied. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass für die Schleifstollen ein Schleifgranulat in Form von Mikropellets von 0,2 bis 3mm verwendet werden.A method according to claim 6, characterized in that a grinding granulate in the form of micropellets of 0.2 to 3 mm are used for the grinding lugs. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass für die Schleifstollen ein durch Granulierung von bestehenden oder recyclefähigen heissgepressten oder druckfrei gesinterten, metallisch oder keramisch gebundenen Schleifbelägen mit Diamant- oder CBN-Korn gewonnenes Schleifgranulat verwendet wird.A method according to claim 6, characterized in that for the grinding tunnels by granulation of existing or recyclable hot-pressed or pressure-free sintered, metallic or ceramic-bonded abrasive materials with diamond or CBN grit are used. Schleifscheibe, hergestellt nach dem Verfahren nach den Ansprüchen 6 und 7 oder 8.Grinding wheel produced by the method according to claims 6 and 7 or 8.
EP94115711A 1993-10-15 1994-10-06 Abrasive lining for abrasive tool Expired - Lifetime EP0648576B1 (en)

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CH03119/93A CH686787A5 (en) 1993-10-15 1993-10-15 Abrasive lining for abrasive products and methods of making the abrasive coating.
CH3119/93 1993-10-15

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EP0648576A1 true EP0648576A1 (en) 1995-04-19
EP0648576B1 EP0648576B1 (en) 1997-12-29

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EP (1) EP0648576B1 (en)
JP (1) JPH07164325A (en)
KR (1) KR950011509A (en)
AT (1) ATE161459T1 (en)
CH (1) CH686787A5 (en)
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US7722691B2 (en) * 2005-09-30 2010-05-25 Saint-Gobain Abrasives, Inc. Abrasive tools having a permeable structure
US20070298240A1 (en) * 2006-06-22 2007-12-27 Gobena Feben T Compressible abrasive article
CH701596B1 (en) * 2009-08-11 2013-08-15 Meister Abrasives Ag Dressing.
US8708781B2 (en) * 2010-12-05 2014-04-29 Ethicon, Inc. Systems and methods for grinding refractory metals and refractory metal alloys
JP5729809B2 (en) * 2011-03-16 2015-06-03 株式会社東京精密 Agglomerated abrasive
WO2012145284A2 (en) * 2011-04-18 2012-10-26 3M Innovative Properties Company Resin bonded grinding wheel
CN104097153A (en) * 2014-07-08 2014-10-15 郑州磨料磨具磨削研究所有限公司 Superhard material abrasive layer, grinding wheel, and manufacturing method of superhard material abrasive layer
CN115256251A (en) * 2022-07-19 2022-11-01 江苏赛扬精工科技有限责任公司 Resin-based composite binder grinding disc and preparation method thereof

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WO1996010471A1 (en) * 1994-09-30 1996-04-11 Minnesota Mining And Manufacturing Company Coated abrasive article, method for preparing the same, and method of using
AU687598B2 (en) * 1994-09-30 1998-02-26 Minnesota Mining And Manufacturing Company Coated abrasive article, method for preparing the same, and method of using
US5975988A (en) * 1994-09-30 1999-11-02 Minnesota Mining And Manfacturing Company Coated abrasive article, method for preparing the same, and method of using a coated abrasive article to abrade a hard workpiece
US6217413B1 (en) * 1994-09-30 2001-04-17 3M Innovative Properties Company Coated abrasive article, method for preparing the same, and method of using a coated abrasive article to abrade a hard workpiece
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CN106378717A (en) * 2016-09-28 2017-02-08 南京航空航天大学 Production method and application of multicrystal diamond tablet

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DE59404881D1 (en) 1998-02-05
ATE161459T1 (en) 1998-01-15
US5651729A (en) 1997-07-29
EP0648576B1 (en) 1997-12-29
CH686787A5 (en) 1996-06-28
KR950011509A (en) 1995-05-15

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