EP0038929B1 - Dressing tool - Google Patents

Dressing tool Download PDF

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Publication number
EP0038929B1
EP0038929B1 EP81101933A EP81101933A EP0038929B1 EP 0038929 B1 EP0038929 B1 EP 0038929B1 EP 81101933 A EP81101933 A EP 81101933A EP 81101933 A EP81101933 A EP 81101933A EP 0038929 B1 EP0038929 B1 EP 0038929B1
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EP
European Patent Office
Prior art keywords
dressing
cutting plates
fact
dressing tool
cutting
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Expired
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EP81101933A
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German (de)
French (fr)
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EP0038929A3 (en
EP0038929A2 (en
Inventor
Horst Lach
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LACH-SPEZIAL-Werkzeuge GmbH
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LACH-SPEZIAL-Werkzeuge GmbH
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Application filed by LACH-SPEZIAL-Werkzeuge GmbH filed Critical LACH-SPEZIAL-Werkzeuge GmbH
Priority to AT81101933T priority Critical patent/ATE20444T1/en
Publication of EP0038929A2 publication Critical patent/EP0038929A2/en
Publication of EP0038929A3 publication Critical patent/EP0038929A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/12—Dressing tools; Holders therefor
    • B24B53/14—Dressing tools equipped with rotary rollers or cutters; Holders therefor

Definitions

  • the invention relates to a dressing tool for machining abrasive bodies by means of a rotating dressing roller or a linearly moving dressing block and a plurality of projections arranged one after the other in the cutting direction on the circumference of the dressing roller or on an edge of the dressing block, the cutting plates preferably made of polycrystalline synthetic diamond, wear cubic crystalline boron nitride, hard metal or ceramic, which partly overlap to form the profile of the dressing tool, as is known for example from DE-A-2 238 387.
  • the cutting plates have the same shape and are arranged as perfectly as possible on the tool. This is to ensure that each individual cutting edge of the cutting plates from the workpiece to be machined only removes a relatively small, precisely predictable chip size.
  • only dressing tools with a relatively simply shaped geometric dressing profile can be produced in this way.
  • Dressing tools for complicated profiles are in the VDI magazine volume 120, No. 24, December 1978, by H.-R. Meyer under the title «Diamond and CBN tools for machining tasks in mechanical engineering on pages 85 to 95. Accordingly, diamond dressing rolls with complicated profiles can only be produced in a galvanically bound version with a stochastically distributed surface finish, but this means that the advantages which can be achieved with generic dressing tools as a result of the definable arrangement of cutting plates are eliminated.
  • the object of the invention is to develop the generic dressing tool in such a way that it can have a complicated dressing profile.
  • the object is achieved according to the invention in that the cutting plates have at least two different successive projections in the cutting direction.
  • the cutting plates can be obtained in a particularly simple manner by means of coating a base body having the desired profile, but it is also possible to use commercially available polycrystalline synthetic diamond plates. These are obtained, for example, in the form of circular disks 1.5 or 3.2 mm thick and 13.7 mm in diameter and can then be used by means of spark erosion or by means of an electron or laser beam or a hot oxygen beam or by grinding or shaping, for example by pressing to be edited. In this way, the excellent cutting properties of such cutting inserts can be used. Reworking is possible without difficulty since the profiled cutting plates can be re-profiled and, if necessary, replaced.
  • FIG. 1 shows a dressing roller 10 according to the invention, which consists of a base or shaft body 12 which has eight segments 14 in the exemplary embodiment.
  • Tungsten carbide plates 16 are arranged on the chest surfaces of the segments 14.
  • a carrier material 20, which serves to hold profiled cutting plates 18 polycrystalline synthetic diamonds, is fastened to these in the head region.
  • the carrier material 20 is preferably in the form of a hard metal base.
  • a cutting material other than polycrystalline synthetic diamond can be used and can also be arranged directly on the chest surfaces.
  • the diamond plates 18 can be produced by means of spark erosion or by means of an electron or laser beam or a hot oxygen jet and correspondingly high-pressure water or by grinding or shaping z. B. processed by pressing. This ensures a high precision of the profiles of the diamond cutting plates 18, so that when the dressing tool 10 is used, a grinding wheel work surface is made available which is not only characterized by geometrical accuracy, but also by an extremely high sharpness which leads to a leads to longer service life.
  • a chip chamber 26 is provided in front of the teeth 14, into which the corresponding parts can be accommodated. Complex removal of the corresponding particles is not necessary, as is the case when using known dressing tools with continuous dressing rollers provided with surfaces with diamond grains.
  • FIG. 3 shows a side view of a dressing block 30 which has projections 32, on the breast surfaces of which cutting plates 34 are arranged.
  • the cutting plates 34 are hard or superhard materials which consist of a compact unit in the form of finished profiled plates or of base bodies coated with the cutting materials.
  • the projections 32 can be an integral part of the base body 28 or can be fastened thereon.
  • profiled cutting inserts made of polycrystalline synthetic diamond are used, which in turn are connected to the base body 28 by means of a carrier material (which at the same time forms the projections).
  • a carrier material which at the same time forms the projections.
  • chip chambers 36 in front of the projections in the dressing block 28.
  • FIG. 4 shows a front view of the dressing block 30 according to the invention and clarifies that the profile surface of a projection is composed of a plurality of machined cutting plates made of hard or hard material.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Description

Die Erfindung betrifft ein Abrichtwerkzeug für die Bearbeitung von Schleifkörpern mittels einer rotierenden Abrichtrolle oder einem linear bewegten Abrichtblock sowie einer Mehrzahl von am Umfang der Abrichtrolle bzw. an einer Kante des Abrichtblockes in Schneidrichtung nacheinander angeordneten Vorsprüngen, die Schneid-Platten aus vorzugsweise polykristalinem synthetischen Diamant, kubisch kristalinem Bornitrid, Hartmetall oder Keramik tragen, welche sich teilweise überlappend zum Profil des Abrichtwerkzeuges zusammenfügen, wie es beispielsweise aus der DE-A-2 238 387 bekannt ist. Bei dem bekannten Abrichtwerkzeug sind die Schneid-Platten formgleich und mit möglichst vollkommener Regelmäßigkeit auf dem Werkzeug angeordnet. Hierdurch soll erreicht werden, daß jede Einzelschneide der Schneid-Platten vom zu be arbeitenden Werkstück nur einen verhältnismäßig kleinen, in seiner Größe genau vorhersehbaren Span abträgt. Es lassen sich jedoch auf diese Weise nur Abrichtwerkzeuge mit verhältnismäßig einfach geformtem geometrischen Abrichtprofil herstellen.The invention relates to a dressing tool for machining abrasive bodies by means of a rotating dressing roller or a linearly moving dressing block and a plurality of projections arranged one after the other in the cutting direction on the circumference of the dressing roller or on an edge of the dressing block, the cutting plates preferably made of polycrystalline synthetic diamond, wear cubic crystalline boron nitride, hard metal or ceramic, which partly overlap to form the profile of the dressing tool, as is known for example from DE-A-2 238 387. In the known dressing tool, the cutting plates have the same shape and are arranged as perfectly as possible on the tool. This is to ensure that each individual cutting edge of the cutting plates from the workpiece to be machined only removes a relatively small, precisely predictable chip size. However, only dressing tools with a relatively simply shaped geometric dressing profile can be produced in this way.

Bei dem aus der US-A-2 088 084 bekannten Abrichtwerkzeug sind mehrere gleichgeformte, über den Umfang einer Abrichtrolle gleichmäßig verteilt angeordnete Schneid-Platten aus Metallkarbiden vorgesehen. Die voranstehend angeführte Beschränkung auf einfache geometrische Profile gilt auch hier.In the dressing tool known from US-A-2 088 084, a plurality of uniformly shaped cutting plates made of metal carbides are provided which are uniformly distributed over the circumference of a dressing roller. The above limitation to simple geometric profiles also applies here.

Abrichtwerkzeuge für komplizierte Profile sind in der VDI-Zeitschrift Band 120, Nr. 24, Dezember 1978, von H.-R. Meyer unter dem Titel « Diamant-und CBN-Werkzeuge für Bearbeitungsaufgaben im Maschinenbau auf den Seiten 85 bis 95 beschrieben. Demnach lassen sich Diamantabrichtrollen mit komplizierten Profilen nur in galvanisch gebundener Ausführung mit stochastisch verteiltem Oberflächenbesatz herstellen, wodurch jedoch die bei gattungsgemäßen Abrichtwerkzeugen infolge der festlegbaren Anordnung von Schneid-Platten erzielbaren Vorteile entfallen.Dressing tools for complicated profiles are in the VDI magazine volume 120, No. 24, December 1978, by H.-R. Meyer under the title «Diamond and CBN tools for machining tasks in mechanical engineering on pages 85 to 95. Accordingly, diamond dressing rolls with complicated profiles can only be produced in a galvanically bound version with a stochastically distributed surface finish, but this means that the advantages which can be achieved with generic dressing tools as a result of the definable arrangement of cutting plates are eliminated.

Die Bearbeitung von Diamanten, die hierzu oberflächlich graphitisiert werden müssen, mittels Funkenerosion in einem Dielektrikum ist beispielsweise aus der US-A-2 939 941 bekannt. Eine Bearbeitung von Schneidwerkstoffen, welche Diamanten oder kubisches Bornitrid enthalten, mittels Lasern ist in der EP-A1 0 009 315 beschrieben. Auf diese Weise können die gattungsgemäßen Schneid-Platten hergestellt werden.The processing of diamonds, which must be graphitized on the surface for this purpose, by means of spark erosion in a dielectric is known, for example, from US Pat. No. 2,939,941. Processing of cutting materials which contain diamonds or cubic boron nitride by means of lasers is described in EP-A1 0 009 315. In this way, the generic cutting plates can be produced.

Die Erfindung steht unter der Aufgabe, das gattungsgemäße Abrichtwerkzeug derart weiterzubilden, daß es ein kompliziertes Abrichtprofil aufweisen kann.The object of the invention is to develop the generic dressing tool in such a way that it can have a complicated dressing profile.

Die Aufgabe wird gemäß der Erfindung dadurch gelöst, daß die Schneid-Platten zumindest zweier in Schneidrichtung aufeinander folgender Vorsprünge verschiedene Form aufweisen. Es ergibt sich der Vorteil, daß aufgrund der unterschiedlichen Profilierung der Schneid-Platten eine optimale Anordnung in bezug auf Minimalisierung der Bruchgefahr möglich ist ; darüber hinaus ist ein Austausch einzelner Schneid-Platten leicht möglich.The object is achieved according to the invention in that the cutting plates have at least two different successive projections in the cutting direction. There is the advantage that, due to the different profiling of the cutting plates, an optimal arrangement with regard to minimizing the risk of breakage is possible; in addition, it is easy to replace individual inserts.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben. So können die Schneid-Platten aus mittels Beschichtung eines das gewünschte Profil aufweisenden Grundkörpers auf besonders einfache Weise erhalten werden, es ist aber auch die Verwendung kommerziell erhältlicher polykristalliner synthetischer Diamantplättchen möglich. Diese werden beispielsweise in Form von Kreisscheiben von 1,5 oder 3,2 mm Dicke und einem Durchmesser von 13,7 mm bezogen und können dann mittels Funkenerosion oder mittels eines Elektronen-oder Laserstrahles oder eines heißen Sauerstoffstrahles oder durch Schleifen oder formgebend beispielsweise durch Pressen bearbeitet werden. So können die vorzüglichen Schneideigenschaften derartiger Schneid-Platten genutzt werden. Ein Nachbearbeiten ist ohne Schwierigkeiten möglich da die profilierten Schneid-Platten nachprofiliert und gegebenenfalls ausgewechselt werden können.Advantageous embodiments of the invention are specified in the subclaims. Thus, the cutting plates can be obtained in a particularly simple manner by means of coating a base body having the desired profile, but it is also possible to use commercially available polycrystalline synthetic diamond plates. These are obtained, for example, in the form of circular disks 1.5 or 3.2 mm thick and 13.7 mm in diameter and can then be used by means of spark erosion or by means of an electron or laser beam or a hot oxygen beam or by grinding or shaping, for example by pressing to be edited. In this way, the excellent cutting properties of such cutting inserts can be used. Reworking is possible without difficulty since the profiled cutting plates can be re-profiled and, if necessary, replaced.

Die Erfindung wird nachstehend anhand zeichnerisch dargestellter Ausführungsbeispiele näher erläutert.The invention is explained in more detail below with the aid of exemplary embodiments shown in the drawings.

Es zeigen :

  • Figur 1 ein erfindungsgemäßes Abrichtwerkzeug in Form einer Abrichtrolle in Seitenansicht,
  • Figur 2 das Abrichtwerkzeug nach Fig. 1 in Draufsicht,
  • Figur 3 einen Abrichtblock in Seitendarstellung und
  • Figur 4 eine Schnittdarstellung des Abrichtblockes nach Fig. 3
Show it :
  • 1 shows a dressing tool according to the invention in the form of a dressing roller in a side view,
  • 2 shows the dressing tool according to FIG. 1 in plan view,
  • Figure 3 shows a dressing block in side view and
  • FIG. 4 shows a sectional illustration of the dressing block according to FIG. 3

In Fig. 1 ist eine erfindungsgemäße Abrichtrolle 10 dargestellt, die aus einem Grund- oder Schaftkörper 12 besteht, der im Ausführungsbeispiel acht Segmente 14 aufweist. Auf den Brustflächen der Segmente 14 sind Hartmetallplättchen 16 angeordnet. Auf diesen ist im Kopfbereich jeweils ein Trägermaterial 20 befestigt, das zur Halterung von profilierten Schneid-Platten 18 polykristallinen synthetischen Diamants dient. Das Trägermaterial 20 ist vorzugsweise in Form einer Hartmetallunterlage ausgebildet. Selbstverständlich kann ein anderer Schneidstoff als polykristalliner synthetischer Diamant Verwendung finden und auch unmittelbar auf den Brustflächen angeordnet sein.1 shows a dressing roller 10 according to the invention, which consists of a base or shaft body 12 which has eight segments 14 in the exemplary embodiment. Tungsten carbide plates 16 are arranged on the chest surfaces of the segments 14. A carrier material 20, which serves to hold profiled cutting plates 18 polycrystalline synthetic diamonds, is fastened to these in the head region. The carrier material 20 is preferably in the form of a hard metal base. Of course, a cutting material other than polycrystalline synthetic diamond can be used and can also be arranged directly on the chest surfaces.

Wie das zeichnerische Ausführungsbeispiel nach Fig. 2 verdeutlicht, ist häufig mehr als eine Schneid-Platte aus Diamant 18 (ausgefüllte Fläche) auf einer Brustfläche eines Segments 14 angeordnet, um ein gewünschtes Profil zur Verfügung zu stellen. Damit der Stoß zwischen den Schneid-Platten 18 aus synthetischem Diamant beim Abrichten von Schleifscheiben die geometrische Genauigkeit nicht beeinflußt, also der Stoß zum Beispiel nicht zu einer unerwünschten Vertiefung oder Erhebung auf der Schleifscheibe führt, sind die Schneid-Platten 18 auf aufeinanderfolgenden Segmenten 14 versetzt zueinander angeordnet. Dadurch erfolgt eine Überlappung im Stoßbereich bei sich drehender Abrichtrolle, so daß eine überaus präzise geometrische Genauigkeit der Schleifscheibe auch weiterhin gewährleistet ist. Wie die Fig. 2 verdeutlicht, sind auf einem Segment 22 zwei Schneid-Platten 18 aus synthetischem Diamant angeordnet, wohingegen auf dem nachfolgenden Segment 24 nur eine einzige Schneid-Platte 18 vorgesehen ist, welche genau im Stoßbereich der Schneid-Platte 18 des vorausgehenden Segments 22 angeordnet ist.As illustrated in the drawing embodiment of FIG. 2, often more than one cutting plate made of diamond 18 (filled surface) is arranged on a chest surface of a segment 14 in order to provide a desired profile. So that the shock between the cutting plates 18 made of synthetic diamond when dressing grinding wheels the geo metric accuracy is not affected, that is, for example, the impact does not lead to an undesirable depression or elevation on the grinding wheel, the cutting plates 18 are arranged on successive segments 14 offset from one another. This results in an overlap in the joint area when the dressing roller rotates, so that extremely precise geometric accuracy of the grinding wheel is still guaranteed. As illustrated in FIG. 2, two cutting plates 18 made of synthetic diamond are arranged on a segment 22, whereas only a single cutting plate 18 is provided on the following segment 24, which is exactly in the joint area of the cutting plate 18 of the preceding segment 22 is arranged.

Im Ausführungsbeispiel ist zwar ein einfaches von den Schneid-Platten 18 gebildetes Profil dargestellt, jedoch kann dieses selbstverständlich beliebige Formen aufweisen. Um eine entsprechende Bearbeitung von Diamantplatten zur Herstellung eines gewünschten Profils durchzuführen, können die Diamantplatten mittels Funkenerosion oder mittels eines Elektronen- oder Laser-Strahls oder eines heißen Sauerstoffstrahls und entsprechend hochgespanntes Druckwasser oder duch Schleifen oder formgebend z. B. durch Pressen bearbeitet werden. Dadurch ist eine hohe Präzision der Profile der Schneid-Platten 18 aus Diamant gewährleistet, so daß bei dem Einsatz des Abrichtwerkzeugs 10 eine Schleifscheibenarbeitsfläche zur Verfügung gestellt wird, die sich nicht nur durch geometrische Genauigkeit, sondern auch durch eine überaus hohe Schärfe, die zu einer längeren Standzeit führt, auszeichnet.Although a simple profile formed by the cutting plates 18 is shown in the exemplary embodiment, this can of course have any shape. In order to carry out a corresponding processing of diamond plates to produce a desired profile, the diamond plates can be produced by means of spark erosion or by means of an electron or laser beam or a hot oxygen jet and correspondingly high-pressure water or by grinding or shaping z. B. processed by pressing. This ensures a high precision of the profiles of the diamond cutting plates 18, so that when the dressing tool 10 is used, a grinding wheel work surface is made available which is not only characterized by geometrical accuracy, but also by an extremely high sharpness which leads to a leads to longer service life.

Um die beim Bearbeiten einer Schleifscheibe anfallenden abgetragenen stumpf gewordenen Schleifkörner und Metallpartikel auf einfache Weise zu entfernen, ist vor den Zähnen 14 jeweils eine Spankammer 26 vorgesehen, in die die entsprechenden Teile aufgenommen werden können. Ein aufwendiges Entfernen der entsprechenden Teilchen ist wie bei einem Einsatz bekannter Abrichtwerkzeuge mit durchgehenden, mit Diamantkörnern besetzten Flächen versehenen Abrichtrollen nicht erforderlich.In order to remove in a simple manner the abraded abrasive grains and metal particles that have been removed when machining a grinding wheel, a chip chamber 26 is provided in front of the teeth 14, into which the corresponding parts can be accommodated. Complex removal of the corresponding particles is not necessary, as is the case when using known dressing tools with continuous dressing rollers provided with surfaces with diamond grains.

In Fig. 3 ist in Seitenansicht ein Abrichtblock 30 dargestellt, der Vorsprünge 32 aufweist, auf deren Brustflächen Schneid-Platten 34 angeordnet sind. Dabei handelt es sich bei den Schneid-Platten 34 um harte oder überharte Materialien, die aus einer kompakten Einheit in Form fertiger profilierter Platten oder aus mit den Schneidstoffen beschichteten Grundkörpern bestehen. Die Vorsprünge 32 können dabei integraler Bestandteil des Grundkörpers 28 oder auf diesen befestigt sein.3 shows a side view of a dressing block 30 which has projections 32, on the breast surfaces of which cutting plates 34 are arranged. The cutting plates 34 are hard or superhard materials which consist of a compact unit in the form of finished profiled plates or of base bodies coated with the cutting materials. The projections 32 can be an integral part of the base body 28 or can be fastened thereon.

Im Ausführungsbeispiel nach Fig. 3 finden profilierte Schneid-Platten aus polykristallinem synthetischem Diamant Verwendung, die ihrerseits mittels eines Trägermaterials (das gleichzeitig die Vorsprünge bildet) mit dem Grundkörper 28 verbunden sind. Wie bei der Abrichtrolle 10 befinden sich auch beim Abrichtblock 28 Spankammern 36 vor den Vorsprüngen.3, profiled cutting inserts made of polycrystalline synthetic diamond are used, which in turn are connected to the base body 28 by means of a carrier material (which at the same time forms the projections). As with the dressing roller 10, there are also chip chambers 36 in front of the projections in the dressing block 28.

In Fig. 4 ist eine Vorderansicht des erfindungsgemäßen Abrichtblockes 30 dargestellt und verdeutlicht, daß die Profilfläche eines Vorsprunges aus mehreren bearbeiteten Schneid-Platten harten oder überharte'n Materials zusammengesetzt ist.4 shows a front view of the dressing block 30 according to the invention and clarifies that the profile surface of a projection is composed of a plurality of machined cutting plates made of hard or hard material.

Der weitere Vorteil, daß ein Nachbearbeiten ohne Schwierigkeiten möglich ist, da die auf den Brustflächen angeordneten profilierten Schneid-Platten nachprofiliert und gegebenenfalls ausgewechselt werden können, ist daher sowohl bei der Abrichtrolle als auch bei dem Abrichtblock gegeben.The further advantage that reworking is possible without difficulty, since the profiled cutting plates arranged on the chest surfaces can be re-profiled and, if necessary, replaced, is therefore given both in the dressing roller and in the dressing block.

Claims (5)

1. Dressing tool for processing grinding tools by means of a rotating dressing roller (10) or a linearly moved dressing block (30), as well as several protrusions (32) sucessively arranged (one after the other) on the peripherical area or on the edge of the dressing tool, the cutting plates (18, 34) being preferably made of polycrystalline synthetic diamond or cubic crystalline boron nitride, hard metal or ceramics which form the profile of the dressing tool while partly overlapping, characterized by the fact that the cutting plates (18, 34) of at least two - in the direction of the cutting movement subsequent - protrusions (16, 20, 22, 24 ; 32) show different forms.
2. Dressing tool according to claim 1 characterized by the fact that the cutting plates (18 ; 34) consist of a fundamental body covered with a coating and showing the profile.
3. Dressing tool in the form of a dressing roller according to claim 1 or 2 characterized by the fact that segments (14) arranged to each other in a certain distance on the peripherical area of a shank body (12), on the lips of which, the cutting plates (18) are provided for.
4. Dresser tool according to claim 3 characterized by the fact that chip-spaces (26) are arranged in the shaft body (10) in front of the lips.
5. Dressing tool in the form of a dressing block according to claim 1 or 2 characterized by the fact that the cutting plates (34) are arranged on protrusions (32) which .are attached to a fundamental -body (30).
EP81101933A 1980-04-30 1981-03-16 Dressing tool Expired EP0038929B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81101933T ATE20444T1 (en) 1980-04-30 1981-03-16 DRESSING TOOL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803016740 DE3016740A1 (en) 1980-04-30 1980-04-30 DRESSING TOOL
DE3016740 1980-04-30

Publications (3)

Publication Number Publication Date
EP0038929A2 EP0038929A2 (en) 1981-11-04
EP0038929A3 EP0038929A3 (en) 1982-05-12
EP0038929B1 true EP0038929B1 (en) 1986-06-18

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ID=6101384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101933A Expired EP0038929B1 (en) 1980-04-30 1981-03-16 Dressing tool

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US (1) US4411250A (en)
EP (1) EP0038929B1 (en)
JP (2) JPS571663A (en)
AR (1) AR225504A1 (en)
AT (1) ATE20444T1 (en)
BR (1) BR8102621A (en)
CS (1) CS275827B6 (en)
DD (1) DD158625A5 (en)
DE (1) DE3016740A1 (en)
ES (1) ES274348Y (en)
GB (1) GB2078145B (en)
HK (1) HK24284A (en)
HU (1) HU186764B (en)
IL (1) IL62755A (en)
SG (1) SG63283G (en)

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US6308700B1 (en) * 1999-10-25 2001-10-30 Dr Kaiser Co. Process and manufacturing of a rotary diamond dresser for trueing and dressing of industrial grinding wheels
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US8277284B2 (en) 2007-05-10 2012-10-02 1339513 Ontario Ltd. Ice skate blade sharpening machines and associated method of dressing a grinding wheel
US7934978B2 (en) * 2007-05-10 2011-05-03 1339513 Ontario Ltd. Ice skate blade sharpening machine
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DE2238387A1 (en) * 1972-08-04 1974-03-28 Winter & Sohn Ernst MULTI-BLADE CUTTING TOOL
US3916579A (en) * 1975-02-10 1975-11-04 Tunco Manufacturing Inc Slotted abrasive wheel
ZA782286B (en) * 1978-04-21 1979-10-31 Christensen Inc Abrasive bodies
IE48798B1 (en) * 1978-08-18 1985-05-15 De Beers Ind Diamond Method of making tool inserts,wire-drawing die blank and drill bit comprising such inserts
DE2921196A1 (en) * 1979-05-25 1980-12-04 Wolfgang Riegger Grinder disc diamond dressing head - has different plates in recess each with diamond coating of predetermined size

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3503914A1 (en) * 1985-02-06 1986-08-07 Horst 6450 Hanau Lach Dressing tool

Also Published As

Publication number Publication date
IL62755A (en) 1984-11-30
BR8102621A (en) 1982-01-19
SG63283G (en) 1985-03-29
JPS63318265A (en) 1988-12-27
HU186764B (en) 1985-09-30
HK24284A (en) 1984-03-23
CS275827B6 (en) 1992-03-18
ES274348U (en) 1984-04-01
AR225504A1 (en) 1982-03-31
EP0038929A3 (en) 1982-05-12
JPS571663A (en) 1982-01-06
GB2078145A (en) 1982-01-06
JPS6363349B2 (en) 1988-12-07
JPH0317624B2 (en) 1991-03-08
GB2078145B (en) 1983-03-23
ATE20444T1 (en) 1986-07-15
DD158625A5 (en) 1983-01-26
ES274348Y (en) 1984-11-16
DE3016740A1 (en) 1981-11-05
US4411250A (en) 1983-10-25
EP0038929A2 (en) 1981-11-04

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