DE102013212661A1 - abrasive grain - Google Patents
abrasive grain Download PDFInfo
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- DE102013212661A1 DE102013212661A1 DE102013212661.1A DE102013212661A DE102013212661A1 DE 102013212661 A1 DE102013212661 A1 DE 102013212661A1 DE 102013212661 A DE102013212661 A DE 102013212661A DE 102013212661 A1 DE102013212661 A1 DE 102013212661A1
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- grain
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- phase
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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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1409—Abrasive particles per se
Abstract
Es wird ein Schleifkorn mit zumindest einem ersten Kornbereich (12a–d) und zumindest einem zweiten Kornbereich (14a–d), die zur Erzielung eines Selbstschärfungseffekts zumindest eine voneinander abweichende Eigenschaft aufweisen, vorgeschlagen.An abrasive grain with at least one first grain area (12a-d) and at least one second grain area (14a-d), which have at least one property that differs from one another in order to achieve a self-sharpening effect, is proposed.
Description
Stand der TechnikState of the art
Es sind bereits selbstschärfende Schleifkörner, bei denen durch einen Abbruch von Materialteilen aus einem homogenen Schleifkornmaterial während eines Schleifbetriebs neue Schleifkanten entstehen, bekannt. Diese selbstschärfenden Schleifkörner weisen homogene Materialeigenschaften, die über einen Gesamtbereich des Korns identisch sind, auf.It is already self-sharpening abrasive grains in which arise by a demolition of material parts of a homogeneous abrasive grain material during a grinding operation new grinding edges known. These self-sharpening abrasive grains have homogeneous material properties that are identical over a total area of the grain.
Offenbarung der ErfindungDisclosure of the invention
Es wird ein Schleifkorn mit zumindest einem ersten Kornbereich und zumindest einem zweiten Kornbereich, die zur Erzielung eines Selbstschärfungseffekts zumindest eine voneinander abweichende Eigenschaft aufweisen, vorgeschlagen.An abrasive grain with at least one first grain region and at least one second grain region, which have at least one property differing from one another in order to achieve a self-sharpening effect, is proposed.
Unter einem „Schleifkorn“ soll insbesondere ein vorzugsweise keramischer, kristalliner und/oder metallischer Körper mit zumindest einer Schleifkante verstanden werden. Abhängig von einer gewünschten Anwendung und einem gewünschten Feinheitsgrad weisen die Schleifkörner einen Durchmesser zwischen zehn Millimeter und einem halben Mikrometer auf. Insbesondere kann das Schleifkorn eine definierte Geometrie aufweisen. Unter „Schleifkörnern mit einer definierten Geometrie“ sollen insbesondere Schleifkörner verstanden werden, die zumindest im Wesentlichen eine identische und vorherbestimmte Form, beispielsweise eine Stab- oder Tetraederform, aufweisen. Insbesondere sind Schleifkörner mit einer definierten Geometrie durch einen Prozess hergestellt worden, der gezielt Schleifkörner mit der zumindest im Wesentlichen vorherbestimmten Form herstellt. Unter einer „zumindest im Wesentlichen identischen Form“ soll insbesondere verstanden werden, dass die Schleifkörner bis auf produktionsprozessbedingte Abweichungen eine identische Form und vorzugsweise eine identische Größe aufweisen. Unter einem „Kornbereich“ soll insbesondere ein makroskopischer Bereich des Korns verstanden werden, der eine lineare Ausdehnung in Raumrichtungen von zumindest einem Mikrometer aufweist. Vorzugsweise weist ein Kornbereich ein Volumen auf, das zumindest ein Zehntel, vorteilhaft zumindest ein Fünftel und bevorzugt zumindest eine Hälfte eines Gesamtvolumens des Schleifkorns ausmacht. Unter einem „Selbstschärfungseffekt“ soll insbesondere ein Effekt verstanden werden, der einem Abstumpfen des Schleifkorns durch Materialabrieb in einem Schleifbetrieb entgegenwirkt. Insbesondere wird bei dem Selbstschärfungseffekt während eines Schleifbetriebs die zumindest eine Schleifkante des Schleifkorns beispielsweise durch Verformung des Schleifkorns und/oder speziell vorgesehene Materialabtragsorte des Schleifkorns dahingehend beeinflusst, dass die zumindest eine Schleifkante scharf gehalten wird und/oder neue Schleifkanten erzeugt werden. Unter „voneinander abweichende Eigenschaften“ sollen insbesondere Materialeigenschaften wie beispielsweise eine voneinander abweichende Härte, Duktilität oder Dichte verstanden werden. Vorzugsweise sind Positionen der Kornbereiche mit den voneinander abweichenden Eigenschaften derart im Schleifkorn angeordnet, dass eine Position einer Schleifkante an dem Schleifkorn und/oder eine Hauptabtragsrichtung der Schleifkante im Wesentlichen vorherbestimmt sind. Durch die erfindungsgemäße Ausgestaltung des Schleifkorns kann insbesondere ein Schleifkorn mit Selbstschärfungseffekt erreicht werden.An "abrasive grain" is to be understood as meaning in particular a preferably ceramic, crystalline and / or metallic body having at least one abrasive edge. Depending on a desired application and a desired degree of fineness, the abrasive grains have a diameter between ten millimeters and one-half micron. In particular, the abrasive grain may have a defined geometry. By "abrasive grains having a defined geometry" is meant, in particular, abrasive grains which have at least essentially an identical and predetermined shape, for example a rod or tetrahedron shape. In particular, abrasive grains having a defined geometry have been produced by a process that selectively produces abrasive grains having the at least substantially predetermined shape. By an "at least substantially identical form" is to be understood in particular that the abrasive grains have an identical shape and preferably an identical size except for production-related deviations. A "grain region" is to be understood in particular as meaning a macroscopic region of the grain which has a linear extension in spatial directions of at least one micrometer. Preferably, a grain region has a volume that makes up at least one tenth, advantageously at least one fifth and preferably at least one half of a total volume of the abrasive grain. A "self-sharpening effect" is to be understood in particular an effect that counteracts a dulling of the abrasive grain by material abrasion in a grinding operation. In particular, in the self-sharpening effect during a grinding operation, the at least one abrasive edge of the abrasive grain is affected, for example, by deformation of the abrasive grain and / or specially provided material removal location of the abrasive grain such that the at least one abrasive edge is kept sharp and / or new abrasive edges are created. By "divergent properties" should be understood in particular material properties such as a different hardness, ductility or density. Preferably, positions of the grain regions with the divergent properties are arranged in the abrasive grain such that a position of a grinding edge on the abrasive grain and / or a main removal direction of the grinding edge are substantially predetermined. The inventive design of the abrasive grain, in particular, an abrasive grain with self-sharpening effect can be achieved.
Weiterhin wird vorgeschlagen, dass der zumindest eine erste Kornbereich von einer Hartphase und der zumindest eine zweite Kornbereich von einer Weichphase gebildet ist. Unter einer „Hartphase“ und einer „Weichphase“ sollen insbesondere Bereiche verstanden werden, bei denen eine Härte der Hartphase zumindest um fünf Prozent, vorteilhaft zumindest um zehn Prozent und vorzugsweise zumindest um zwanzig Prozent größer ist als eine Härte der Weichphase. Die Hartphase und die Weichphase können grundsätzlich von Kornbereichen des Schleifkorns aus unterschiedlichen Materialien oder von Kornbereichen des Schleifkorns aus demselben Material, von denen zumindest ein Kornbereich einer Härtungs- und/oder Weichmacherbehandlung wie beispielsweise einer Thermobehandlung unterzogen wurde, bestehen. Grundsätzlich können die Hartphase und die Weichphase auch in einem Rapid-Prototyping-Verfahren mittels Laser hergestellt werden, wobei durch Anpassung von Laserparametern eine unterschiedliche Härte erreicht wird. Vorzugsweise sind der zumindest eine erste Kornbereich und der zumindest eine zweite Kornbereich zumindest im Wesentlichen stabförmig ausgebildet, wodurch hohe Standzeiten erreicht werden können. Grundsätzlich können die Hartphase und die Weichphase auch Seitenbereiche eines geometrischen Körpers, beispielsweise eines quaderförmigen, eines würfelförmigen oder eines pyramidalen Körpers, bilden, wobei insbesondere ein würfelförmiger Körper vorteilhaft streubar ist. Insbesondere wird in einem Schleifbetrieb die Weichphase stärker abgeschliffen als die Hartphase, so dass sich in einem Schleifbetrieb durch einen hauptsächlich an der Weichphase stattfindenden Materialabtrag ein sich stetig ändernder Verlauf einer Schleifkante ausbildet, wodurch die Schleifkante stets scharf bleibt. Insbesondere ändert sich durch den Materialabtrag stets ein Winkel zwischen Schleifkante und einem zu bearbeitenden Werkstück. Es kann insbesondere auf prozesstechnisch einfache Weise ein Schleifkorn mit Selbstschärfungseffekt erreicht werden.Furthermore, it is proposed that the at least one first grain region is formed by a hard phase and the at least one second grain region is formed by a soft phase. A "hard phase" and a "soft phase" are to be understood in particular as areas in which a hardness of the hard phase is at least five percent, advantageously at least ten percent, and preferably at least twenty percent greater than a hardness of the soft phase. The hard phase and the soft phase may in principle consist of grain regions of the abrasive grain of different materials or grain regions of the abrasive grain of the same material, of which at least one grain region has been subjected to a hardening and / or plasticizing treatment such as a thermal treatment. In principle, the hard phase and the soft phase can also be produced by means of a laser in a rapid prototyping method, whereby a different hardness is achieved by adaptation of laser parameters. Preferably, the at least one first grain region and the at least one second grain region are at least substantially rod-shaped, whereby high service lives can be achieved. In principle, the hard phase and the soft phase can also form side regions of a geometric body, for example a cuboidal, a cube-shaped or a pyramidal body, wherein in particular a cube-shaped body is advantageously scattered. In particular, in a grinding operation, the soft phase is abraded more strongly than the hard phase, so that in a grinding operation takes place by taking place mainly on the soft phase material removal a constantly changing course of a grinding edge, whereby the grinding edge always remains sharp. In particular, the material removal always changes an angle between the grinding edge and a workpiece to be machined. In particular, an abrasive grain with a self-sharpening effect can be achieved in a process-technically simple manner.
Des Weiteren wird vorgeschlagen, dass der zumindest eine erste Kornbereich von einer Duktilphase gebildet und der zumindest eine zweite Kornbereich von einer Sprödphase gebildet ist. Unter einer „Duktilphase“ und einer „Sprödphase“ sollen insbesondere zwei Phasen verstanden werden, die sich hinsichtlich ihres Verhaltens unter einer Druckbelastung voneinander unterscheiden, indem die Duktilphase sich zumindest weitgehend plastisch verformt, wogegen die Sprödphase unter Druckbelastung unter Abbruch einzelner Teile spröde bricht. Insbesondere weist die Duktilphase eine zumindest doppelt, vorteilhaft zumindest vierfach und besonders vorteilhaft zumindest zehnmal so hohe Duktilität wie die Sprödphase auf. Insbesondere entsteht durch einen Abbruch von Material der Sprödphase unter Belastung bei einem Schleifprozess eine neue Schleifkante. Ferner wird durch eine plastische Verformung der Duktilphase eine Änderung eines Winkels zwischen der Schleifkante und dem zu bearbeitenden Werkstück erreicht, wodurch einer Abnutzung der Schleifkante entgegengewirkt wird. Die Duktilphase und/oder die Sprödphase kann insbesondere in einem Herstellungsprozess durch Füllung eines Hohlraums in einer Grundform aus einem spröden oder duktilem Material mit einem duktilem oder spröden Material in das Schleifkorn eingebracht werden oder kann durch eine thermische Behandlung zu einer Erhöhung oder Verringerung einer Sprödigkeit oder Duktilität eines Materials oder durch Erzeugung einer Zweitphase während eines Sintervorgangs erhalten werden. Grundsätzlich ist es auch vorstellbar, dass das Schleifkorn in einem Rapid-Prototyping-Verfahren durch Lasereinwirkung auf eine Pulvermenge eines Grundmaterials erzeugt wird und durch geeignete Wahl von Laserparametern während einer Herstellung die Duktilphase und die Sprödphase erzeugt werden. Es kann insbesondere auf prozesstechnisch einfache Weise ein Schleifkorn mit Selbstschärfungseffekt erreicht werden.Furthermore, it is proposed that the at least one first grain area of a Ductile phase formed and the at least one second grain region is formed by a brittle phase. A "ductile phase" and a "brittle phase" are to be understood in particular as meaning two phases which differ from one another in terms of their behavior under a compressive load, in that the ductile phase at least largely plastically deforms, whereas the brittle phase breaks brittle under pressure when individual parts are broken off. In particular, the ductile phase has at least twice, advantageously at least four times and particularly advantageously at least ten times as high ductility as the brittle phase. In particular, by aborting material of the brittle phase under load in a grinding process, a new abrasive edge. Further, a plastic deformation of the ductile phase, a change in an angle between the grinding edge and the workpiece to be machined is achieved, whereby a wear of the abrasive edge is counteracted. The ductile phase and / or the brittle phase may in particular be introduced into the abrasive grain in a manufacturing process by filling a cavity in a basic form of a brittle or ductile material with a ductile or brittle material, or may increase or decrease brittleness by thermal treatment Ductility of a material or by producing a second phase during a sintering process. In principle, it is also conceivable that the abrasive grain is produced in a rapid prototyping method by laser action on a powder quantity of a base material and the ductile phase and the brittle phase are produced by suitable choice of laser parameters during production. In particular, an abrasive grain with a self-sharpening effect can be achieved in a process-technically simple manner.
Ferner wird vorgeschlagen, dass der zumindest eine erste Kornbereich einen Schleifkorninnenbereich bildet. Unter einem „Schleifkorninnenbereich“ soll ein Kornbereich verstanden werden, der auf zumindest vier Raumseiten von einem anderen Kornbereich, insbesondere dem zweiten Kornbereich, umgeben ist. Insbesondere kann durch eine Anordnung der Duktilphase in dem Schleifkorninnenbereich unter Belastung in einem Schleifprozess eine Veränderung eines Winkels einer Schleifkante an einem Schleifkornaußenbereich durch plastische Verformung der Duktilphase in dem Schleifkorninnenbereich und eine dadurch bewirkte Verformung des Schleifkorns erreicht werden, wodurch einer Abschleifung der Schleifkante entgegengewirkt werden kann. Es kann insbesondere eine vorteilhafte Anordnung der Duktilphase zur Erzielung eines möglichst hohen Selbstschärfungseffekts erreicht werden.It is also proposed that the at least one first grain region forms an abrasive grain inner region. An "abrasive grain inner region" is to be understood as meaning a grain region which is surrounded on at least four spatial sides by another grain region, in particular the second grain region. In particular, by placing the ductile phase in the abrasive grain inner region under load in a grinding process, a change in an angle of a grinding edge on an abrasive grain outer region can be achieved by plastically deforming the ductile phase in the abrasive grain inner region and thereby causing the abrasive grain to deform, thereby counteracting sanding of the abrasive edge , In particular, an advantageous arrangement of the ductile phase can be achieved in order to achieve the highest possible self-sharpening effect.
Des Weiteren wird vorgeschlagen, dass der zumindest eine zweite Kornbereich von zumindest einem Hohlraum gebildet ist, der von dem zumindest einen ersten Kornbereich begrenzt ist. Insbesondere wird der zumindest eine erste Kornbereich im Schleifbetrieb abgetragen. Wird durch Materialabtrag ein Hohlraum freigelegt, so wirkt eine Kante des ersten Kornbereichs, die an den Hohlraum und einen Außenraum angrenzt, als eine Schleifkante, so dass in einem Schleifbetrieb neue Schleifkanten erzeugt werden. Vorzugsweise weisen die Hohlräume eine scharfkantige, von einer runden Form abweichende Form auf. Grundsätzlich können die Hohlräume mittels einer geeigneten Form in einem Herstellungsprozess gezielt an vorher bestimmten Stellen in das Schleifkorn eingebracht sein. Alternativ kann der Herstellungsprozess derart ausgebildet sein, beispielsweise durch gezielte Einbringung eines in einem Herstellungsprozess, insbesondere in einem Guß- oder Sinterprozess, ausgasendem Stoffs, das in dem Schleifkorn Hohlräume ausgebildet werden. Es kann insbesondere mit einer einfachen Konstruktion ein Schleifkorn mit Selbstschärfungseffekt erreicht werden.Furthermore, it is proposed that the at least one second grain region is formed by at least one cavity, which is delimited by the at least one first grain region. In particular, the at least one first grain region is removed during the grinding operation. If a cavity is uncovered by material removal, then an edge of the first grain area, which adjoins the cavity and an outer space, acts as a grinding edge, so that new grinding edges are produced in a grinding operation. Preferably, the cavities have a sharp-edged shape deviating from a round shape. Basically, the cavities can be introduced by means of a suitable shape in a manufacturing process targeted at predetermined locations in the abrasive grain. Alternatively, the production process may be designed in such a way, for example by targeted introduction of a material which is degasified in a production process, in particular in a casting or sintering process, and which cavities are formed in the abrasive grain. In particular, with a simple construction, an abrasive grain with self-sharpening effect can be achieved.
Ferner wird ein Schleifmittel mit erfindungsgemäßen Schleifkörnern vorgeschlagen.Furthermore, an abrasive with abrasive grains according to the invention is proposed.
Das erfindungsgemäße Schleifkorn soll hierbei nicht auf die oben beschriebene Anwendung und Ausführungsform beschränkt sein. Insbesondere kann das erfindungsgemäße Schleifkorn zu einer Erfüllung einer hierin beschriebenen Funktionsweise eine von einer hierin genannten Anzahl von einzelnen Elementen, Bauteilen und Einheiten abweichende Anzahl aufweisen.The abrasive grain according to the invention should not be limited to the application and embodiment described above. In particular, in order to fulfill a mode of operation described herein, the abrasive grain according to the invention may have a number deviating from a number of individual elements, components and units specified herein.
Zeichnungdrawing
Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In den Zeichnungen sind vier Ausführungsbeispiele der Erfindung dargestellt. Die Zeichnungen, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages emerge from the following description of the drawing. In the drawings, four embodiments of the invention are shown. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.
Es zeigen:Show it:
Beschreibung der AusführungsbeispieleDescription of the embodiments
Der erste Kornbereich
In den
In
Claims (6)
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Cited By (32)
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US9428681B2 (en) | 2012-05-23 | 2016-08-30 | Saint-Gobain Ceramics & Plastics, Inc. | Shaped abrasive particles and methods of forming same |
US9440332B2 (en) | 2012-10-15 | 2016-09-13 | Saint-Gobain Abrasives, Inc. | Abrasive particles having particular shapes and methods of forming such particles |
US9457453B2 (en) | 2013-03-29 | 2016-10-04 | Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs | Abrasive particles having particular shapes and methods of forming such particles |
US9517546B2 (en) | 2011-09-26 | 2016-12-13 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive articles including abrasive particulate materials, coated abrasives using the abrasive particulate materials and methods of forming |
US9567505B2 (en) | 2012-01-10 | 2017-02-14 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive particles having complex shapes and methods of forming same |
US9566689B2 (en) | 2013-12-31 | 2017-02-14 | Saint-Gobain Abrasives, Inc. | Abrasive article including shaped abrasive particles |
US9598620B2 (en) | 2011-06-30 | 2017-03-21 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive articles including abrasive particles of silicon nitride |
US9604346B2 (en) | 2013-06-28 | 2017-03-28 | Saint-Gobain Cermaics & Plastics, Inc. | Abrasive article including shaped abrasive particles |
US9676980B2 (en) | 2012-01-10 | 2017-06-13 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive particles having particular shapes and methods of forming such particles |
US9676981B2 (en) | 2014-12-24 | 2017-06-13 | Saint-Gobain Ceramics & Plastics, Inc. | Shaped abrasive particle fractions and method of forming same |
US9676982B2 (en) | 2012-12-31 | 2017-06-13 | Saint-Gobain Ceramics & Plastics, Inc. | Particulate materials and methods of forming same |
US9707529B2 (en) | 2014-12-23 | 2017-07-18 | Saint-Gobain Ceramics & Plastics, Inc. | Composite shaped abrasive particles and method of forming same |
US9765249B2 (en) | 2011-12-30 | 2017-09-19 | Saint-Gobain Ceramics & Plastics, Inc. | Shaped abrasive particle and method of forming same |
US9771507B2 (en) | 2014-01-31 | 2017-09-26 | Saint-Gobain Ceramics & Plastics, Inc. | Shaped abrasive particle including dopant material and method of forming same |
US9783718B2 (en) | 2013-09-30 | 2017-10-10 | Saint-Gobain Ceramics & Plastics, Inc. | Shaped abrasive particles and methods of forming same |
US9803119B2 (en) | 2014-04-14 | 2017-10-31 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive article including shaped abrasive particles |
US9902045B2 (en) | 2014-05-30 | 2018-02-27 | Saint-Gobain Abrasives, Inc. | Method of using an abrasive article including shaped abrasive particles |
US9914864B2 (en) | 2014-12-23 | 2018-03-13 | Saint-Gobain Ceramics & Plastics, Inc. | Shaped abrasive particles and method of forming same |
US9938440B2 (en) | 2015-03-31 | 2018-04-10 | Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs | Fixed abrasive articles and methods of forming same |
US10106714B2 (en) | 2012-06-29 | 2018-10-23 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive particles having particular shapes and methods of forming such particles |
US10196551B2 (en) | 2015-03-31 | 2019-02-05 | Saint-Gobain Abrasives, Inc. | Fixed abrasive articles and methods of forming same |
US10280350B2 (en) | 2011-12-30 | 2019-05-07 | Saint-Gobain Ceramics & Plastics, Inc. | Composite shaped abrasive particles and method of forming same |
US10557067B2 (en) | 2014-04-14 | 2020-02-11 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive article including shaped abrasive particles |
US10563105B2 (en) | 2017-01-31 | 2020-02-18 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive article including shaped abrasive particles |
DE102018007706A1 (en) * | 2018-09-28 | 2020-04-02 | Rhodius Schleifwerkzeuge Gmbh & Co. Kg | Abrasive skeleton for abrasives |
US10711171B2 (en) | 2015-06-11 | 2020-07-14 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive article including shaped abrasive particles |
US10759024B2 (en) | 2017-01-31 | 2020-09-01 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive article including shaped abrasive particles |
US10865148B2 (en) | 2017-06-21 | 2020-12-15 | Saint-Gobain Ceramics & Plastics, Inc. | Particulate materials and methods of forming same |
US11230653B2 (en) | 2016-09-29 | 2022-01-25 | Saint-Gobain Abrasives, Inc. | Fixed abrasive articles and methods of forming same |
US11718774B2 (en) | 2016-05-10 | 2023-08-08 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive particles and methods of forming same |
US11926019B2 (en) | 2019-12-27 | 2024-03-12 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive articles and methods of forming same |
US11959009B2 (en) | 2016-05-10 | 2024-04-16 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive particles and methods of forming same |
-
2013
- 2013-06-28 DE DE102013212661.1A patent/DE102013212661A1/en not_active Withdrawn
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US9598620B2 (en) | 2011-06-30 | 2017-03-21 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive articles including abrasive particles of silicon nitride |
US9517546B2 (en) | 2011-09-26 | 2016-12-13 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive articles including abrasive particulate materials, coated abrasives using the abrasive particulate materials and methods of forming |
US10428255B2 (en) | 2011-12-30 | 2019-10-01 | Saint-Gobain Ceramics & Plastics, Inc. | Shaped abrasive particle and method of forming same |
US11453811B2 (en) | 2011-12-30 | 2022-09-27 | Saint-Gobain Ceramics & Plastics, Inc. | Shaped abrasive particle and method of forming same |
US10280350B2 (en) | 2011-12-30 | 2019-05-07 | Saint-Gobain Ceramics & Plastics, Inc. | Composite shaped abrasive particles and method of forming same |
US9765249B2 (en) | 2011-12-30 | 2017-09-19 | Saint-Gobain Ceramics & Plastics, Inc. | Shaped abrasive particle and method of forming same |
US9567505B2 (en) | 2012-01-10 | 2017-02-14 | Saint-Gobain Ceramics & Plastics, Inc. | Abrasive particles having complex shapes and methods of forming same |
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