EP0648576B1 - Schleifbelag für Schleifwerkzeuge - Google Patents
Schleifbelag für Schleifwerkzeuge Download PDFInfo
- Publication number
- EP0648576B1 EP0648576B1 EP94115711A EP94115711A EP0648576B1 EP 0648576 B1 EP0648576 B1 EP 0648576B1 EP 94115711 A EP94115711 A EP 94115711A EP 94115711 A EP94115711 A EP 94115711A EP 0648576 B1 EP0648576 B1 EP 0648576B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- abrasive
- grinding
- diamond
- lining
- bonded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000227 grinding Methods 0.000 claims abstract description 40
- 239000010432 diamond Substances 0.000 claims abstract description 14
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 13
- 239000011230 binding agent Substances 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 4
- 101000974007 Homo sapiens Nucleosome assembly protein 1-like 3 Proteins 0.000 claims description 3
- 102100022398 Nucleosome assembly protein 1-like 3 Human genes 0.000 claims description 3
- 239000003082 abrasive agent Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000008188 pellet Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000005469 granulation Methods 0.000 abstract description 2
- 230000003179 granulation Effects 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 13
- 239000006061 abrasive grain Substances 0.000 description 9
- 229920003002 synthetic resin Polymers 0.000 description 8
- 239000000057 synthetic resin Substances 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 6
- 239000008187 granular material Substances 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Images
Classifications
-
- 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 abrasive tools, in particular abrasive discs, with abrasive studs made from abrasive granules with a metallic or ceramic bonded diamond or CBN abrasive grain.
- Such an abrasive coating is known from EP-A-0 444 824, in which a base agglomerate comprises a plurality of abrasive grains, which are bound by a first binder. On this base agglomerate there is a covering of a second binder with which second abrasive grains are virtually glued to the circumference of the base agglomerate.
- the abrasive grains can be, for example, diamonds or CBN and the binders can be metallic or, preferably, synthetic resin.
- the sanding studs are attached to a sanding tool (sanding disc, emery paper, etc.) as a single covering using adhesive layers made of synthetic resin.
- the grinding lugs are integrated in a synthetic resin binding matrix and interspersed with diamond or CBN abrasive grain, the diamond or.
- CBN concentration in each grinding tunnel does not exceed 8.8 carat per cubic centimeter (FEPA K200 or 480V) and the volume fraction of the grinding tunnel in the grinding surface is approx. 30 to 60%.
- the diamond or CBN grain size MD20 (20 microns) to D301 (50/60 mesh) or MB20 (20 microns) to D427 (40/50 mesh) and the grinding studs have a size of about 1/4 to 3mm.
- the abrasive grain remains longer in the binder, furthermore the anchoring of the abrasive grain prevents it from springing back, the volume fraction of the grinding lugs in the binding matrix is 30 to 60%, and also due to the different wear behavior between the abrasion-resistant grinding zone and formed by the lugs the "soft" synthetic resin binding matrix, the formation of large chip spaces is now possible. 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.
- 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 resilience and the good bond with the metallic carrier create the best conditions for use in the field of high-speed grinding.
- the known abrasive coating 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 can now be 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 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.
- the grinding lugs 13 are integrated in a synthetic resin binding matrix and completely interspersed with diamond or CBN abrasive grain, the diamond or.
- CBN concentration in each grinding tunnel does not exceed 8.8 carat per cubic centimeter (FEPA K200 or 480V) and the volume fraction of the grinding tunnel in the grinding surface is approx. 30 to 60%.
- the diamond or CBN grain size is MD20 (20 microns) to D301 (50/60 mesh) resp. MB20 (20 microns) to D427 (40/50 mesh).
- the grinding lugs have a size of approx. 1/4 to 3mm.
- 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.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
- Die vorliegende Erfindung betrifft einen Schleifbelag für Schleifwerkzeuge, insbesondere Schleifscheiben, mit Schleifstollen aus einem Schleifgranulat mit metallisch oder keramisch gebundenem Diamant- oder CBN-Schleifmittelkorn.
- Ein solcher Schleifbelag ist durch die EP-A-0 444 824 bekannt geworden, bei welchem ein Basis-Agglomerat eine Mehrzahl Schleifkörner umfasst, die durch einen ersten Binder eingebunden sind. Auf diesem Basis-Agglomerat befindet sich ein Belag eines zweiten Binders mit dem zweite Schleifkörner am Umfang des Basis-Agglometrates quasi aufgeklebt sind. Die Schleifkörner können beispielsweise Diamanten oder CBN und die Binder u.a. metallisch oder hier vorzugsweise Kunstharz sein. Die Schleifstollen sind dabei mittels Haft-Schichten aus Kunstharz folienartig auf ein Schleifwerkzeug (Schleifscheibe, Schmiergelpapier u.a.) als Einfachbelag aufgebracht.
- Bedingt durch die Haft-Schichten, die Korngrösse, den Kornfreistand u.a. ergeben sich bei solchen Schleifscheiben aber nur sehr kleine Spanräume, sodass die Schleifscheibe oder Schmiergeltuch u.a. schnell zusetzt und neu profiliert bzw. abgerichtet werden muss; abgesehen der sonstigen Verschleisserscheinungen durch Wegbrechen der quasi aufgeklebten äusseren Schleifkörner sowie durch die hier ungünstige Schleiftemperatur-Verteilung im Kunstharz- oder Keramik-Schleifbelag.
- 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.
- Dies wird erfindungsgemäss dadurch erreicht, dass die Schleifstollen in einer Kunstharz-Bindematrix eingebunden und mit Diamant- oder CBN-Schleifmittelkorn durchsetzt sind, wobei die Diamant- resp. CBN-Konzentration in jeder Schleifstolle 8,8 Karat pro Kubikzentimeter (FEPA K200 resp. 480V) nicht übersteigt und wobei der Volumenanteil der Schleifstollen im Schleifbelag ca. 30 bis 60% beträgt.
- Bei einer bevorzugten Ausgestaltung des erfindungsgemässen Schleifbelages kann die Diamant- oder CBN-Korngrösse MD20 (20 Mikron) bis D301 (50/60 Mesh) resp. MB20 (20 Mikron) bis D427 (40/50 Mesh) betragen und ferner die Schleifstollen eine Grösse von ca. 1/4 bis 3mm aufweisen.
- Dadurch, dass durch diese Massnahmen das Schleifmittelkorn länger im Binder verbleibt, ferner die Verankerung des Schleifmittelkorns dessen Nachfederung verhindert, ferner der Volumenanteil der Schleifstollen in der Bindematrix 30 bis 60% beträgt sowie ferner durch das unterschiedliche Verschleissverhalten zwischen der durch die Stollen gebildeten abriebsfesten Schleifzone und der "weichen" Kunstharz-Bindematrix, ist nunmehr die Ausbildung grosser Spanräume möglich. 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.
- 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.
- Insbesondere aber die hohe mechanische Belastbarkeit und die gute Bindung mit dem metallischen Träger schaffen beste Voraussetzungen für den Einsatz im Bereich des Hochgeschwindigkeitsschleifens.
- 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 für eine Schleifscheibe.
- 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.
- Korn und Binder können dabei im Schleifbelag 10 ansich beliebig vorhanden sein und zudem Zusätze, wie Stützkorn, Füllstoffe, Schmierstoffe und Weichmacher enthalten.
- Ein solcher Schleifbelag in granularer Form wird kann nun 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.
- 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.
- Erfindungsgemäss sind dabei die Schleifstollen 13 in einer Kunstharz-Bindematrix eingebunden und vollständig mit Diamant- oder CBN-Schleifmittelkorn durchsetzt, wobei die Diamant- resp. CBN-Konzentration in jeder Schleifstolle 8,8 Karat pro Kubikzentimeter (FEPA K200 resp. 480V) nicht übersteigt und wobei der Volumenanteil der Schleifstollen im Schleifbelag ca. 30 bis 60% beträgt.
- Weiter beträgt die Diamant- oder CBN-Korngrösse MD20 (20 Mikron) bis D301 (50/60 Mesh) resp. MB20 (20 Mikron) bis D427 (40/50 Mesh).
- Ferner weisen die Schleifstollen eine Grösse von ca. 1/4 bis 3mm auf.
- 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.
- 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.
- Weiter ist erkennbar, dass nur die Stollen 13 auf dem Werkstück reiben, was sich vorteilhaft auf die Lebensdauer eines solchen Belages auswirkt.
Claims (3)
- Schleifbelag für Schleifwerkzeuge, insbesondere Schleifscheiben, mit Schleifstollen aus einem heißgepressten oder druckfrei gesinterten Schleifgranulat mit metallisch oder keramisch gebundenem Diamant- oder CBN-Schleifmittelkorn,
dadurch gekennzeichnet,
dass die Schleifstollen (13) in einer Kunstharz-Bindematrix (15) eingebunden und mit Diamant- oder CBN-Schleifmittelkorn durchsetzt sind, wobei die Diamant- resp. CBN-Konzentration in jeder Schleifstolle 8,8 Karat pro Kubikzentimeter (FEPA K200 resp. 480V) nicht übersteigt und
wobei der Volumenanteil der Schleifstollen im Schleifbelag ca. 30 bis 60% beträgt. - 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 D427 (40/50 Mesh) beträgt.
- Schleifbelag nach Anspruch 1, dadurch gekennzeichnet, dass die Schleifstollen eine Grösse von ca. 1/4 bis 3mm aufweisen.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH03119/93A CH686787A5 (de) | 1993-10-15 | 1993-10-15 | Schleifbelag fuer Schleifwerkzeuge und Verfahren zur Herstellung des Schleifbelages. |
| CH3119/93 | 1993-10-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0648576A1 EP0648576A1 (de) | 1995-04-19 |
| EP0648576B1 true EP0648576B1 (de) | 1997-12-29 |
Family
ID=4249021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94115711A Expired - Lifetime EP0648576B1 (de) | 1993-10-15 | 1994-10-06 | Schleifbelag für Schleifwerkzeuge |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5651729A (de) |
| EP (1) | EP0648576B1 (de) |
| JP (1) | JPH07164325A (de) |
| KR (1) | KR950011509A (de) |
| AT (1) | ATE161459T1 (de) |
| CH (1) | CH686787A5 (de) |
| DE (1) | DE59404881D1 (de) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| BE1008917A3 (fr) * | 1994-11-16 | 1996-10-01 | Diamant Boart Sa | Outil abrasif, de coupe ou analogue et procede de fabrication de cet outil. |
| DE69519800T2 (de) * | 1995-10-25 | 2001-08-02 | Osaka Diamond Industrial Co., Sakai | Schleifscheibe |
| US6012977A (en) * | 1997-12-22 | 2000-01-11 | Shin-Etsu Chemical Co., Ltd. | Abrasive-bladed cutting wheel |
| US6074278A (en) * | 1998-01-30 | 2000-06-13 | Norton Company | High speed grinding wheel |
| KR100407227B1 (ko) | 1998-09-25 | 2003-11-28 | 미쓰비시 마테리알 가부시키가이샤 | 복합본드숫돌 및 수지결합상을 보유하는 숫돌 |
| US6319108B1 (en) | 1999-07-09 | 2001-11-20 | 3M Innovative Properties Company | Metal bond abrasive article comprising porous ceramic abrasive composites and method of using same to abrade a workpiece |
| US6988937B2 (en) * | 2002-04-11 | 2006-01-24 | Saint-Gobain Abrasives Technology Company | Method of roll grinding |
| US7090565B2 (en) * | 2002-04-11 | 2006-08-15 | Saint-Gobain Abrasives Technology Company | Method of centerless grinding |
| US7544114B2 (en) * | 2002-04-11 | 2009-06-09 | Saint-Gobain Technology Company | Abrasive articles with novel structures and methods for grinding |
| US6679758B2 (en) | 2002-04-11 | 2004-01-20 | Saint-Gobain Abrasives Technology Company | Porous abrasive articles with agglomerated abrasives |
| US7101260B2 (en) * | 2002-07-29 | 2006-09-05 | Nanoclean Technologies, Inc. | Methods for resist stripping and other processes for cleaning surfaces substantially free of contaminants |
| KR100430396B1 (ko) * | 2003-07-07 | 2004-05-04 | 김효영 | 수지결합식 다이아몬드 공구 및 그 제조방법 |
| CN100391694C (zh) * | 2004-12-10 | 2008-06-04 | 广东奔朗超硬材料制品有限公司 | 一种镶嵌型树脂金刚石复合磨块及其制作方法 |
| US7494519B2 (en) * | 2005-07-28 | 2009-02-24 | 3M Innovative Properties Company | Abrasive agglomerate polishing method |
| US7169031B1 (en) | 2005-07-28 | 2007-01-30 | 3M Innovative Properties Company | Self-contained conditioning abrasive article |
| 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 (de) * | 2009-08-11 | 2013-08-15 | Meister Abrasives Ag | Abrichtwerkzeug. |
| US8708781B2 (en) * | 2010-12-05 | 2014-04-29 | Ethicon, Inc. | Systems and methods for grinding refractory metals and refractory metal alloys |
| JP5729809B2 (ja) * | 2011-03-16 | 2015-06-03 | 株式会社東京精密 | 凝集砥粒 |
| CA2833342C (en) * | 2011-04-18 | 2020-05-12 | 3M Innovative Properties Company | Resin bonded grinding wheel |
| CN104097153A (zh) * | 2014-07-08 | 2014-10-15 | 郑州磨料磨具磨削研究所有限公司 | 超硬材料磨料层、砂轮以及超硬材料磨料层的制造方法 |
| CN106378717A (zh) * | 2016-09-28 | 2017-02-08 | 南京航空航天大学 | 一种多晶体金刚石帖片的制备方法及用途 |
| CN115256251B (zh) * | 2022-07-19 | 2024-06-25 | 江苏赛扬精工科技有限责任公司 | 一种树脂基复合结合剂磨盘及其制备方法 |
| CN117325092B (zh) * | 2023-10-27 | 2026-04-10 | 江苏赛扬精工科技有限责任公司 | 一种陶瓷cBN砂轮近净成型混合料的制备方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA787071B (en) * | 1978-12-18 | 1980-02-27 | De Beers Ind Diamond | Coated abrasive particles |
| DE2964512D1 (en) * | 1978-12-18 | 1983-02-17 | De Beers Ind Diamond | Coated abrasive pellets and method of making same |
| US4770907A (en) * | 1987-10-17 | 1988-09-13 | Fuji Paudal Kabushiki Kaisha | Method for forming metal-coated abrasive grain granules |
| JPH01183370A (ja) * | 1988-01-11 | 1989-07-21 | Noritake Dia Kk | 複合ボンドダイヤモンド砥石とその製造法 |
| US5103598A (en) * | 1989-04-28 | 1992-04-14 | Norton Company | Coated abrasive material containing abrasive filaments |
| US5039311A (en) * | 1990-03-02 | 1991-08-13 | Minnesota Mining And Manufacturing Company | Abrasive granules |
| US5106392A (en) * | 1991-03-14 | 1992-04-21 | General Electric Company | Multigrain abrasive particles |
| GB2263911B (en) * | 1991-12-10 | 1995-11-08 | Minnesota Mining & Mfg | Tool comprising abrasives in an electrodeposited metal binder dispersed in a binder matrix |
| JPH0615572A (ja) * | 1992-07-01 | 1994-01-25 | Matsushita Electric Ind Co Ltd | 研削砥石 |
-
1993
- 1993-10-15 CH CH03119/93A patent/CH686787A5/de not_active IP Right Cessation
-
1994
- 1994-09-30 US US08/315,542 patent/US5651729A/en not_active Expired - Fee Related
- 1994-10-06 EP EP94115711A patent/EP0648576B1/de not_active Expired - Lifetime
- 1994-10-06 AT AT94115711T patent/ATE161459T1/de not_active IP Right Cessation
- 1994-10-06 DE DE59404881T patent/DE59404881D1/de not_active Expired - Fee Related
- 1994-10-07 JP JP6244369A patent/JPH07164325A/ja not_active Withdrawn
- 1994-10-14 KR KR1019940026321A patent/KR950011509A/ko not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE59404881D1 (de) | 1998-02-05 |
| CH686787A5 (de) | 1996-06-28 |
| KR950011509A (ko) | 1995-05-15 |
| JPH07164325A (ja) | 1995-06-27 |
| ATE161459T1 (de) | 1998-01-15 |
| US5651729A (en) | 1997-07-29 |
| EP0648576A1 (de) | 1995-04-19 |
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