WO2001064399A1 - Grinding wheel - Google Patents

Grinding wheel Download PDF

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Publication number
WO2001064399A1
WO2001064399A1 PCT/AT2001/000034 AT0100034W WO0164399A1 WO 2001064399 A1 WO2001064399 A1 WO 2001064399A1 AT 0100034 W AT0100034 W AT 0100034W WO 0164399 A1 WO0164399 A1 WO 0164399A1
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WO
WIPO (PCT)
Prior art keywords
vol
grinding wheel
wheel according
zone
inner zone
Prior art date
Application number
PCT/AT2001/000034
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German (de)
French (fr)
Inventor
Johann Noichl
Matthias Schwemin
Robert Schlechter
Original Assignee
Tyrolit Schleifmittelwerke Swarovski K.G.
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 Tyrolit Schleifmittelwerke Swarovski K.G. filed Critical Tyrolit Schleifmittelwerke Swarovski K.G.
Priority to AU2001233474A priority Critical patent/AU2001233474A1/en
Publication of WO2001064399A1 publication Critical patent/WO2001064399A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives
    • 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
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/14—Zonally-graded wheels; Composite wheels comprising different abrasives

Definitions

  • the invention relates to a grinding wheel with an inner zone and an outer zone surrounding the latter, the outer zone being made of abrasive grain in a ceramic bond and being porous and having a lower density than the inner zone.
  • JP 3 079 277 A describes abrasive tools, including grinding wheels, which have a porous inner zone made of ceramic and a porous outer zone made of ceramic.
  • the porosity of the outer zone is approximately 55% greater than that of the inner zone (15-25%).
  • the outer zone also contains abrasive particles such as CBN and diamond.
  • the object of the invention is therefore to create a grinding wheel with further improved mechanical properties and improved residual grinding behavior, in particular using inexpensive abrasives.
  • this is achieved in a grinding wheel of the type mentioned at the outset in that the inner zone is likewise constructed from abrasive grain in a ceramic bond.
  • the abrasives in the inner zone serve to maintain the homogeneity of the disk, so that the disk can be produced or fired without a carrier body and without adhesive. This means that it can be produced in one mold and one press sequence.
  • the coefficient of thermal expansion is balanced. This has the advantage that the wheel "jumps" less and a higher dimensional stability is achieved in the production process.
  • the main advantage of the abrasive grain in the inner zone results in the "residual grinding behavior" and a so-called “emergency running property” Transfer the corresponding profile to the grinding wheel using a diamond dressing wheel. processing of the workpiece and the disc profile thus "migrates" through wear of the disc edge in the direction of the axis.
  • the highest profile point of the workpiece thus reaches the inner zone before the outer zone is completely used up. Because the inner zone is also equipped with abrasive particles, this also occurs a corresponding removal rate due to the inner zone This means better utilization of the grinding wheel (so-called residual grinding behavior) and also prevents damage to the workpiece due to an uneven removal rate, provided the user overlooks that the inner zone has already been reached during the grinding process (emergency running property of the grinding wheel).
  • Such a grinding wheel with a ceramic-denser inner zone and a more porous outer zone can be produced, for example, by pressing the two zones and firing them together.
  • the ceramic bonding system for the inner zone and for the outer zone makes it possible to keep the coefficient of thermal expansion of the two zones essentially the same and thus prevent cracking.
  • a ceramic bonding system for the inner zone and for the outer zone allows good adhesion to be achieved between the two zones.
  • FIG. 1 shows an exemplary embodiment of a grinding wheel according to the invention in a schematic side view
  • FIG. 2 shows a central vertical section through the grinding wheel shown in FIG. 1.
  • the grinding wheel shown in FIGS. 1 and 2 has an inner zone 1 and a porous outer zone 2 and a central opening 3.
  • the outer zone 2 consists of abrasive grain in a ceramic bond.
  • This outer zone 2 is porous and has a lower density than the inner zone.
  • the inner zone 1 also consists of Schleifkom in a ceramic bond (or in an exemplary embodiment, not shown, made of plastic).
  • the density of the inner zone is between 2.1 g / cm 3 and 2.6 g / cm 3 .
  • the porous outer zone is to achieve a cooler Schliffs, as is required in particular during the deep grinding, between 1, 3 g / cm 3 and 2.2 g / cm 3.
  • the inner zone is made of 40% by volume to 55% by volume of abrasive grain and 15% by volume to 25% by volume more ceramic Bond exists.
  • a bond which comprises the following components has proven to be a particularly favorable ceramic bond:
  • Corundum has proven itself as an abrasive grain type for the inner zone, namely with an abrasive grain size of 100 to 180 mesh.
  • the substantially more porous outer zone which represents the actual grinding zone, advantageously consists of 20% by volume to 50% by volume of abrasive grain and 3% by volume to 20% by volume of ceramic bond.
  • a particularly favorable ceramic bond consists of the following components:
  • Corundum or silicon carbide in particular can be used as the grinding grain for the outer zone, preferably with a grinding grain size of 36 to 400 mesh. These abrasives are significantly cheaper than, for example, diamond or CBN.
  • the structure of the grinding wheel according to the invention can be used with different grinding wheel sizes. Particularly favorable dimensions for the outer zone are between 100 mm and 1300 mm and for the inner zone between 50 mm and 750 mm.
  • the inner zone and the outer zone have the same width, as can be seen from FIG. 2.
  • This width is preferably between 10 and 200 mm.
  • the inner zone 1 and the outer zone 2 are arranged directly adjacent to one another and are preferably pressed together during manufacture.
  • the inner zone 1 can be impregnated with synthetic resin for further reinforcement in the hub area 1a.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

A grinding wheel comprising an inner and outer area. The outer area is made of an abrasive grain in a ceramic bonding and is porous, in addition to having a lower density than the inner area. The inner area (1) is also embodied as an abrasive grain in a ceramic bonding.

Description

Schleifscheibe grinding wheel
Die Erfindung betrifft eine Schleifscheibe mit einer Innenzone und einer diese umgebenden Außenzone, wobei die Außenzone aus Schleifkorn in keramischer Bindung aufgebaut und porös ist sowie eine geringere Dichte als die Innenzone aufweist.The invention relates to a grinding wheel with an inner zone and an outer zone surrounding the latter, the outer zone being made of abrasive grain in a ceramic bond and being porous and having a lower density than the inner zone.
Schleifscheiben mit einer porösen Außenzone sind an sich bekannt. Sie zeichnen sich durch einen „kühleren" Schliff aus und werden daher bevorzugt im Bereich Tiefschleifen eingesetzt. Steigert man die Porosität der Außenzone weiter, so gelangt man an die Grenzen hinsichtlich der zulässigen Umfangsgeschwindigkeit.Grinding wheels with a porous outer zone are known per se. They are characterized by a "cooler" cut and are therefore preferred for deep grinding. If the porosity of the outer zone is increased further, the limits of the permissible peripheral speed are reached.
Die JP 3 079 277 A beschreibt Abrasivwerkzeuge, darunter auch Schleifscheiben, welche eine poröse Innenzone aus Keramik und eine poröse Außenzone aus Keramik besitzen. Die Porosität der Außenzone ist mit ca. 55 % größer als die der Innenzone (15-25%). Die Außenzone enthält zudem Abrasivpartikel wie z.B. CBN und Diamant.JP 3 079 277 A describes abrasive tools, including grinding wheels, which have a porous inner zone made of ceramic and a porous outer zone made of ceramic. The porosity of the outer zone is approximately 55% greater than that of the inner zone (15-25%). The outer zone also contains abrasive particles such as CBN and diamond.
Aufgabe der Erfindung ist es daher, eine Schleifscheibe mit weiter verbesserten mechanischen Eigenschaften und verbessertem Restschleifverhalten insbesondere unter Verwendung günstiger Schleifmittel zu schaffen.The object of the invention is therefore to create a grinding wheel with further improved mechanical properties and improved residual grinding behavior, in particular using inexpensive abrasives.
Erfindungsgemäß wird dies bei einer Schleifscheibe der eingangs genannten Gattung dadurch erreicht, daß die Innenzone ebenfalls aus Schleifkorn in keramischer Bindung aufgebaut ist.According to the invention, this is achieved in a grinding wheel of the type mentioned at the outset in that the inner zone is likewise constructed from abrasive grain in a ceramic bond.
Die Schleifmittel in der Innenzone dienen dazu, die Homogenität der Scheibe zu erhalten, sodaß die Scheibe ohne Trägerkörper und ohne Kleber hergestellt bzw. gebrannt werden kann. D.h. die Herstellung ist in einer Form und einer Preßsequenz möglich. Durch die durchgehende Verwendung von Schleifkorn auch in der Innenzone wird der Wärmeausdehnungskoeffizient ausgeglichen. Dies bringt den Vorteil, daß die Scheibe im Produktionsverfahren weniger „springt" und eine höhere Formfestigkeit erreicht wird. Der wesentliche Vorteil des Schleifkorns in der Innenzone ergibt sich im „Restschleifverhalten" und einer sogenannten „Notlaufeigenschaft". Beim Schleifvorgang von Werkstücken mit Profilen wird das entsprechende Profil durch ein Diamantabrichtrad auf die Schleifscheibe übertragen. Der Scheibenrand nützt sich bei der Be- arbeitung des Werkstückes ab und das Scheibenprofil „wandert" somit durch die Abnützung des Scheibenrandes in Richtung Achse. Der höchste Profilpunkt des Werkstücks erreicht somit die Innenzone, bevor die Außenzone gänzlich verbraucht ist. Dadurch, daß die Innenzone ebenfalls mit Abrasivpartikel ausgestattet ist, erfolgt auch durch die Innenzone eine entsprechende Abtragsleistung. Dies bedeutet eine bessere Ausnützung der Schleifscheibe (sog. Restschleifverhalten) und verhindert zudem eine Beschädigung des Werkstückes durch eine ungleiche Abtragsleistung, sofern der Anwender übersieht, daß beim Schleifvorgang bereits die Innenzone erreicht wurde (Notlaufeigenschaft der Schleifscheibe).The abrasives in the inner zone serve to maintain the homogeneity of the disk, so that the disk can be produced or fired without a carrier body and without adhesive. This means that it can be produced in one mold and one press sequence. Through the continuous use of abrasive grain in the inner zone, the coefficient of thermal expansion is balanced. This has the advantage that the wheel "jumps" less and a higher dimensional stability is achieved in the production process. The main advantage of the abrasive grain in the inner zone results in the "residual grinding behavior" and a so-called "emergency running property" Transfer the corresponding profile to the grinding wheel using a diamond dressing wheel. processing of the workpiece and the disc profile thus "migrates" through wear of the disc edge in the direction of the axis. The highest profile point of the workpiece thus reaches the inner zone before the outer zone is completely used up. Because the inner zone is also equipped with abrasive particles, this also occurs a corresponding removal rate due to the inner zone This means better utilization of the grinding wheel (so-called residual grinding behavior) and also prevents damage to the workpiece due to an uneven removal rate, provided the user overlooks that the inner zone has already been reached during the grinding process (emergency running property of the grinding wheel).
Eine solche Schleifscheibe mit einer keramisch dichteren Innenzone und einer poröseren Außenzone kann beispielsweise durch Verpressen der beiden Zonen und gemeinsames Brennen hergestellt werden. Durch das keramische Bindungssystem für die Innenzone und für die Außenzone ist es möglich, den Wärmeausdehnungskoeffizient der beiden Zonen im wesentlichen gleich zu halten und damit eine Rißbildung zu unterbinden. Außerdem erlaubt es ein keramisches Bindungssystem für die Innenzone und für die Außenzone eine gute Haftung zwischen den beiden Zonen zu erzielen.Such a grinding wheel with a ceramic-denser inner zone and a more porous outer zone can be produced, for example, by pressing the two zones and firing them together. The ceramic bonding system for the inner zone and for the outer zone makes it possible to keep the coefficient of thermal expansion of the two zones essentially the same and thus prevent cracking. In addition, a ceramic bonding system for the inner zone and for the outer zone allows good adhesion to be achieved between the two zones.
Weitere Vorteile und Einzelheiten der Erfindung werden anhand der nachfolgenden Figurenbeschreibung näher erläutert:Further advantages and details of the invention are explained in more detail with reference to the following description of the figures:
Die Fig. 1 zeigt ein Ausführungsbeispiel einer erfindungsgemäßen Schleifscheibe in einer schematischen Seitenansicht, die Fig. 2 zeigt einen zentralen Vertikalschnitt durch die in Fig. 1 dargestellte Schleifscheibe.FIG. 1 shows an exemplary embodiment of a grinding wheel according to the invention in a schematic side view, FIG. 2 shows a central vertical section through the grinding wheel shown in FIG. 1.
Die in den Fig. 1 und 2 dargestellte Schleifscheibe weist eine Innenzone 1 und eine poröse Außenzone 2 sowie eine zentrale Öffnung 3 auf. Erfindungsgemäß besteht die Außenzone 2 aus Schleifkorn in keramischer Bindung. Diese Außenzone 2 ist porös und weist eine geringere Dichte auf als die Innenzone. Die Innenzone 1 besteht ebenfalls aus Schleifkom in keramischer Bindung (bzw. bei einem nicht dargestellten Ausführungsbeispiel aus Kunststoff). Im Hinblick auf die geforderte mechanische Festigkeit ist es günstig, wenn die Dichte der Innenzone zwischen 2,1 g/cm3 und 2,6 g/cm3 liegt. Die poröse Außenzone liegt zur Erzielung eines kühleren Schliffs, wie er insbesondere beim Tiefschleifen benötigt wird, zwischen 1 ,3 g/cm3 und 2,2 g/cm3.The grinding wheel shown in FIGS. 1 and 2 has an inner zone 1 and a porous outer zone 2 and a central opening 3. According to the invention, the outer zone 2 consists of abrasive grain in a ceramic bond. This outer zone 2 is porous and has a lower density than the inner zone. The inner zone 1 also consists of Schleifkom in a ceramic bond (or in an exemplary embodiment, not shown, made of plastic). In view of the required mechanical strength, it is advantageous if the density of the inner zone is between 2.1 g / cm 3 and 2.6 g / cm 3 . The porous outer zone is to achieve a cooler Schliffs, as is required in particular during the deep grinding, between 1, 3 g / cm 3 and 2.2 g / cm 3.
Zur Erzielung einer hohen mechanischen Festigkeit, welche letztlich die geforderten hohen Umfangsgeschwindigkeiten von insbesondere 80 m/s zuläßt, ist es günstig, wenn die Innenzone aus 40 Vol.% bis 55 Vol.% Schleifkorn und 15 Vol.% bis 25 Vol.% keramischer Bindung besteht. Als besonders günstige keramische Bindung hat sich eine Bindung herausgestellt, die folgende Bestandteile umfaßt:To achieve a high mechanical strength, which ultimately allows the required high peripheral speeds of 80 m / s in particular, it is advantageous if the inner zone is made of 40% by volume to 55% by volume of abrasive grain and 15% by volume to 25% by volume more ceramic Bond exists. A bond which comprises the following components has proven to be a particularly favorable ceramic bond:
5 Vol.% - 20 Vol.% Boroxid B203 40 Vol.% - 60 Vol.% Siliziumoxid Si02 10 Vol. % - 20 Vol.% Aluminiumoxid AI2O3 0 Vol.% - 5 Vol.% Natriumoxid Na2O.5 vol.% - 20 vol.% Boron oxide B 2 0 3 40 vol.% - 60 vol.% Silicon oxide Si0 2 10 vol.% - 20 vol.% Aluminum oxide AI 2 O 3 0 vol.% - 5 vol.% Sodium oxide Na 2 O.
Als Schleifkornart für die Innenzone hat sich Korund bewährt und zwar mit einer Schleifkorngröße mit 100 bis 180 mesh.Corundum has proven itself as an abrasive grain type for the inner zone, namely with an abrasive grain size of 100 to 180 mesh.
Die wesentlich porösere Außenzone, welche die eigentliche Schleifzone darstellt, besteht günstigerweise aus 20 Vol.% bis 50 Vol.% aus Schleifkorn und 3 Vol.% bis 20 Vol.% keramischer Bindung. Eine besonders günstige keramische Bindung besteht aus folgenden Bestandteilen:The substantially more porous outer zone, which represents the actual grinding zone, advantageously consists of 20% by volume to 50% by volume of abrasive grain and 3% by volume to 20% by volume of ceramic bond. A particularly favorable ceramic bond consists of the following components:
5 Vol.% - 15 Vol.% Boroxid B2O3 5% by volume - 15% by volume of boron oxide B 2 O 3
40 Vol.% - 60 Vol.% Siliziumoxid SiO2 10 Vol. % - 30 Vol.% Aluminiumoxid AI2O3 0 Vol.% - 5 Vol.% Natriumoxid Na2O.40 vol.% - 60 vol.% Silicon oxide SiO 2 10 vol.% - 30 vol.% Aluminum oxide AI 2 O 3 0 vol.% - 5 vol.% Sodium oxide Na 2 O.
Als Schleifkom für die Außenzone kann insbesondere Korund oder Siliziumcarbid eingesetzt werden, und zwar vorzugsweise mit einer Schleifkorngröße von 36 bis 400 mesh. Diese Schleifmittel sind deutlich preiswerter als zum Beispiel Diamant oder CBN. Abmessungsmäßig kann der erfindungsgemäße Aufbau der Schleifscheibe bei verschiedenen Schleifscheibengrößen eingesetzt werden. Besonders günstige Dimensionen für die Außenzone liegen zwischen 100 mm und 1300 mm und für die Innenzone zwischen 50 mm und 750 mm.Corundum or silicon carbide in particular can be used as the grinding grain for the outer zone, preferably with a grinding grain size of 36 to 400 mesh. These abrasives are significantly cheaper than, for example, diamond or CBN. In terms of dimensions, the structure of the grinding wheel according to the invention can be used with different grinding wheel sizes. Particularly favorable dimensions for the outer zone are between 100 mm and 1300 mm and for the inner zone between 50 mm and 750 mm.
Von der Form her ist es günstig, wenn die Innenzone und die Außenzone dieselbe Breite aufweisen, wie dies aus der Fig. 2 ersichtlich ist. Diese Breite liegt vorzugsweise zwischen 10 und 200 mm.In terms of shape, it is favorable if the inner zone and the outer zone have the same width, as can be seen from FIG. 2. This width is preferably between 10 and 200 mm.
Wie die Fig. 1 und 2 zeigen, sind die Innenzone 1 und die Außenzone 2 direkt aneinander angrenzend angeordnet und vorzugsweise bei der Herstellung miteinander verpreßt. Wie bereits erwähnt, kann die Innenzone 1 zur weiteren Verstärkung im Nabenbereich 1a mit Kunstharz getränkt sein. 1 and 2 show, the inner zone 1 and the outer zone 2 are arranged directly adjacent to one another and are preferably pressed together during manufacture. As already mentioned, the inner zone 1 can be impregnated with synthetic resin for further reinforcement in the hub area 1a.

Claims

P a t e n t a n s p r ü c h e : Patent claims:
1. Schleifscheibe mit einer Innenzone und einer diese umgebenden Außenzone, wobei die Außenzone aus Schleifkorn in keramischer Bindung aufgebaut und porös ist sowie eine geringere Dichte als die Innenzone aufweist, dadurch gekennzeichnet, daß die Innenzone (1) ebenfalls aus Schleifkorn in keramischer Bindung aufgebaut ist.1. Grinding wheel with an inner zone and an outer zone surrounding it, the outer zone being made of abrasive grain in a ceramic bond and being porous and having a lower density than the inner zone, characterized in that the inner zone (1) is also made of abrasive grain in a ceramic bond ,
2. Schleifscheibe nach Anspruch 1 , dadurch gekennzeichnet, daß die Dichte der Innenzone (1 ) zwischen 2,1 g/cm3 und 2,6 g/cm3 liegt.2. Grinding wheel according to claim 1, characterized in that the density of the inner zone (1) is between 2.1 g / cm 3 and 2.6 g / cm 3 .
3. Schleifscheibe nach Anspruch 1 , dadurch gekennzeichnet, daß die Dichte der Außenzone (2) zwischen 1 ,3 g/cm3 und 2,2 g/cm3 liegt.3. A grinding wheel according to claim 1, characterized in that the density of the outer zone (2) between 1, 3 g / cm 3 and 2.2 g / cm 3.
4. Schleifscheibe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Innenzone (1) aus 40 Vol.% bis 55 Vol.% Schleifkorn und 15 Vol.% bis 25 Vol.% keramischer Bindung zusammengesetzt ist.4. Grinding wheel according to one of claims 1 to 3, characterized in that the inner zone (1) is composed of 40 vol.% To 55 vol.% Abrasive grain and 15 vol.% To 25 vol.% Ceramic bond.
5. Schleifscheibe nach Anspruch 4, dadurch gekennzeichnet, daß die keramische Bindung der Innenzone (1) folgende Bestandteile umfaßt:5. Grinding wheel according to claim 4, characterized in that the ceramic bond of the inner zone (1) comprises the following components:
5 Vol.% - 20 Vol.% Boroxid B2O3 40 Vol.% - 60 Vol.% Siliziumoxid SiO2 10 Vol. % - 20 Vol.% Aluminiumoxid AI2O3 0 Vol.% - 5 Vol.% Natriumoxid Na2O5 vol.% - 20 vol.% Boron oxide B 2 O 3 40 vol.% - 60 vol.% Silicon oxide SiO 2 10 vol.% - 20 vol.% Aluminum oxide AI 2 O 3 0 vol.% - 5 vol.% Sodium oxide Na 2 O
6. Schleifscheibe nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Innenzone (1) Schleifkorn mit einer Schleifkorngröße von 100 bis 180 mesh aufweist.6. Grinding wheel according to one of claims 1 to 5, characterized in that the inner zone (1) has abrasive grain with an abrasive grain size of 100 to 180 mesh.
7. Schleifscheibe nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Innenzone (1) Schleifkorn der Kornart Korund aufweist. 7. Grinding wheel according to one of claims 1 to 6, characterized in that the inner zone (1) has abrasive grain of the grain type corundum.
8. Schleifscheibe nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Außenzone (2) aus 20 Vol.% bis 50 Vol.% Schleifkorn und 3 Vol.% bis 20 Vol.% keramischer Bindung zusammengesetzt ist.8. Grinding wheel according to one of claims 1 to 7, characterized in that the outer zone (2) is composed of 20 vol.% To 50 vol.% Abrasive grain and 3 vol.% To 20 vol.% Ceramic bond.
9. Schleifscheibe nach Anspruch 8, dadurch gekennzeichnet, daß die keramische Bindung der Außenzone (2) folgende Bestandteile umfaßt:9. Grinding wheel according to claim 8, characterized in that the ceramic bond of the outer zone (2) comprises the following components:
5 Vol.% - 15 Vol.% Boroxid B2O3 40 Vol.% - 60 Vol.% Siliziumoxid SiO2 10 Vol.% - 30 Vol.% Aluminiumoxid AI2O3 5 vol.% - 15 vol.% Boron oxide B 2 O 3 40 vol.% - 60 vol.% Silicon oxide SiO 2 10 vol.% - 30 vol.% Aluminum oxide AI 2 O 3
0 Vol.% - 5 Vol.% Natriumoxid Na2O0 vol.% - 5 vol.% Sodium oxide Na 2 O
10. Schleifscheibe nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Außenzone (2) Schleifkom mit einer Schleifkorngröße von 36 bis 400 mesh aufweist.10. Grinding wheel according to one of claims 1 to 9, characterized in that the outer zone (2) has Schleifkom with an abrasive grain size of 36 to 400 mesh.
11. Schleifscheibe nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Außenzone (2) Schleifkorn der Kornart Korund oder Siliziumcarbid aufweist.11. Grinding wheel according to one of claims 1 to 10, characterized in that the outer zone (2) has abrasive grain of the grain type corundum or silicon carbide.
12. Schleifscheibe nach einem der Ansprüche 1 bis 11 , dadurch gekennzeichnet, daß die Innenzone (1) und die Außenzone (2) dieselbe Breite, vorzugsweise zwischen 10 mm und 200 mm aufweist.12. Grinding wheel according to one of claims 1 to 11, characterized in that the inner zone (1) and the outer zone (2) have the same width, preferably between 10 mm and 200 mm.
13. Schleifscheibe nach einem der Ansprüche 1 bis 11 , dadurch gekennzeichnet, daß der Durchmesser der Außenzone (2) zwischen 100 mm und 1300 mm liegt.13. Grinding wheel according to one of claims 1 to 11, characterized in that the diameter of the outer zone (2) is between 100 mm and 1300 mm.
14. Schleifscheibe nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der Durchmesser der Innenzone (1) zwischen 50 mm und 750 mm liegt.14. Grinding wheel according to one of claims 1 to 13, characterized in that the diameter of the inner zone (1) is between 50 mm and 750 mm.
15. Schleifscheibe nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß die Innenzone (1) und die Außenzone (2) direkt aneinander angrenzen und vorzugsweise miteinander verpreßt sind. 15. Grinding wheel according to one of claims 1 to 14, characterized in that the inner zone (1) and the outer zone (2) directly adjoin one another and are preferably pressed together.
16. Schleifscheibe nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß sowohl die Innenzone (1) als auch die Außenzone (2) in einer Seitenansicht auf die Schleifscheibe kreisringförmig ausgebildet sind.16. Grinding wheel according to one of claims 1 to 15, characterized in that both the inner zone (1) and the outer zone (2) are circular in a side view of the grinding wheel.
17. Schleifscheibe nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß die Innenzone (1) zumindest bereichsweise (1a) mit Kunstharz getränkt ist.17. Grinding wheel according to one of claims 1 to 16, characterized in that the inner zone (1) is soaked at least in regions (1a) with synthetic resin.
18. Schleifscheibe nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, daß der Wärmeausdehnungskoeffizient der Innenzone (1) und der Außenzone (2) im wesentlichen gleich ist. 18. Grinding wheel according to one of claims 1 to 17, characterized in that the coefficient of thermal expansion of the inner zone (1) and the outer zone (2) is substantially the same.
PCT/AT2001/000034 2000-02-29 2001-02-13 Grinding wheel WO2001064399A1 (en)

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AU2001233474A AU2001233474A1 (en) 2000-02-29 2001-02-13 Grinding wheel

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AT3142000A AT408425B (en) 2000-02-29 2000-02-29 GRINDING WHEEL
ATA314/2000 2000-02-29

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WO (1) WO2001064399A1 (en)

Cited By (8)

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KR100441281B1 (en) * 2002-04-19 2004-07-21 제일연마공업주식회사 Grinding whet stone and production method of it
WO2004065064A2 (en) * 2003-01-15 2004-08-05 Diamond Innovations, Inc. Multi-resinous molded articles having diffused and graded interfaces
WO2011092021A1 (en) * 2010-01-28 2011-08-04 Gottfried Wilhelm Leibniz Universität Hannover Grinding body with additional particles from recycled grinding bodies, and method for the production thereof
CN103624696A (en) * 2013-12-16 2014-03-12 珠海市钜鑫科技开发有限公司 Ceramic bond, preparation method thereof and manufacturing method of ceramic bond grinding tool
CN104015131A (en) * 2014-06-26 2014-09-03 鲁信创业投资集团股份有限公司 Blade part efficient and precise grinding microcrystal ceramic corundum grinding wheel and machining method thereof
CN107214638A (en) * 2017-07-05 2017-09-29 苏州市天星山精密模具有限公司 A kind of multilayer abrasive material composite wheel
WO2018130237A1 (en) * 2017-01-16 2018-07-19 Klingspor Ag Roughing disk with a core comprising at least one grinding additive
WO2021016786A1 (en) * 2019-07-29 2021-02-04 博世电动工具（中国）有限公司 Grinding wheel sheet

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AT502845B1 (en) * 2005-11-16 2008-04-15 Rappold Winterthur Technologie CERAMIC-TIED, ROTATION SYMMETRIC GRINDING BODY
CN102773806A (en) * 2012-07-19 2012-11-14 姜堰市吉祥磨料厂 Double-molding density resin cutting sheet

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DE2342217A1 (en) * 1973-08-21 1975-03-13 Swarovski Tyrolit Schleif High speed grinding disc - has a zone of increased strength up to two thirds ring width in part of disc adjacent to disc bore
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100441281B1 (en) * 2002-04-19 2004-07-21 제일연마공업주식회사 Grinding whet stone and production method of it
WO2004065064A2 (en) * 2003-01-15 2004-08-05 Diamond Innovations, Inc. Multi-resinous molded articles having diffused and graded interfaces
WO2004065064A3 (en) * 2003-01-15 2005-03-31 Diamond Innovations Inc Multi-resinous molded articles having diffused and graded interfaces
WO2011092021A1 (en) * 2010-01-28 2011-08-04 Gottfried Wilhelm Leibniz Universität Hannover Grinding body with additional particles from recycled grinding bodies, and method for the production thereof
CN103624696A (en) * 2013-12-16 2014-03-12 珠海市钜鑫科技开发有限公司 Ceramic bond, preparation method thereof and manufacturing method of ceramic bond grinding tool
CN104015131A (en) * 2014-06-26 2014-09-03 鲁信创业投资集团股份有限公司 Blade part efficient and precise grinding microcrystal ceramic corundum grinding wheel and machining method thereof
WO2018130237A1 (en) * 2017-01-16 2018-07-19 Klingspor Ag Roughing disk with a core comprising at least one grinding additive
CN107214638A (en) * 2017-07-05 2017-09-29 苏州市天星山精密模具有限公司 A kind of multilayer abrasive material composite wheel
WO2021016786A1 (en) * 2019-07-29 2021-02-04 博世电动工具（中国）有限公司 Grinding wheel sheet
CN114173992A (en) * 2019-07-29 2022-03-11 博世电动工具（中国）有限公司 Grinding wheel

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AU2001233474A1 (en) 2001-09-12
AR027412A1 (en) 2003-03-26
ATA3142000A (en) 2001-04-15

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