PL2217404T3 - Artykuły ścierne o nowoczesnych strukturach i sposoby szlifowania - Google Patents
Artykuły ścierne o nowoczesnych strukturach i sposoby szlifowaniaInfo
- Publication number
- PL2217404T3 PL2217404T3 PL08835947T PL08835947T PL2217404T3 PL 2217404 T3 PL2217404 T3 PL 2217404T3 PL 08835947 T PL08835947 T PL 08835947T PL 08835947 T PL08835947 T PL 08835947T PL 2217404 T3 PL2217404 T3 PL 2217404T3
- Authority
- PL
- Poland
- Prior art keywords
- grinding
- methods
- abrasive articles
- novel structures
- novel
- Prior art date
Links
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/865,558 US7544114B2 (en) | 2002-04-11 | 2007-10-01 | Abrasive articles with novel structures and methods for grinding |
| PCT/US2008/078425 WO2009046091A1 (en) | 2007-10-01 | 2008-10-01 | Abrasive articles with novel structures and methods for grinding |
| EP08835947.6A EP2217404B1 (en) | 2007-10-01 | 2008-10-01 | Abrasive articles with novel structures and methods for grinding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL2217404T3 true PL2217404T3 (pl) | 2014-01-31 |
Family
ID=40257072
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL13178935T PL2682232T3 (pl) | 2007-10-01 | 2008-10-01 | Wyroby ścierne z nowymi strukturami i sposoby szlifowania |
| PL08835947T PL2217404T3 (pl) | 2007-10-01 | 2008-10-01 | Artykuły ścierne o nowoczesnych strukturach i sposoby szlifowania |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL13178935T PL2682232T3 (pl) | 2007-10-01 | 2008-10-01 | Wyroby ścierne z nowymi strukturami i sposoby szlifowania |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7544114B2 (pl) |
| EP (2) | EP2217404B1 (pl) |
| AR (1) | AR068656A1 (pl) |
| ES (1) | ES2882324T3 (pl) |
| PL (2) | PL2682232T3 (pl) |
| TW (1) | TWI370759B (pl) |
| WO (1) | WO2009046091A1 (pl) |
Families Citing this family (42)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007027110A1 (de) * | 2007-06-13 | 2008-12-18 | Wacker Chemie Ag | Verfahren und Vorrichtung zum Verpacken von polykristallinem Siliciumbruch |
| SG192427A1 (en) | 2008-06-23 | 2013-08-30 | Saint Gobain Abrasives Inc | High porosity vitrified superabrasive products and method of preparation |
| WO2010063647A1 (en) * | 2008-12-03 | 2010-06-10 | Struers A/S | Abrasive disc |
| SG174351A1 (en) | 2009-03-24 | 2011-10-28 | Saint Gobain Abrasives Inc | Abrasive tool for use as a chemical mechanical planarization pad conditioner |
| EP2438609A4 (en) | 2009-06-02 | 2016-03-09 | Saint Gobain Abrasives Inc | CORROSION-RESISTANT CMP CONDITIONERS AND METHOD FOR THEIR PREPARATION AND USE |
| RU2507056C2 (ru) * | 2009-08-03 | 2014-02-20 | Сэнт-Гобэн Эбрейзивс, Инк. | Абразивный инструмент (варианты) |
| WO2011017358A2 (en) * | 2009-08-03 | 2011-02-10 | Saint-Gobain Abrasives, Inc. | Abrasive tool having a particular porosity variation |
| EP2474025A2 (en) | 2009-09-01 | 2012-07-11 | Saint-Gobain Abrasives, Inc. | Chemical mechanical polishing conditioner |
| WO2011056680A2 (en) | 2009-10-27 | 2011-05-12 | Saint-Gobain Abrasives, Inc. | Vitreous bonded abrasive |
| EP2493660A4 (en) | 2009-10-27 | 2015-08-26 | Saint Gobain Abrasives Inc | RESIN-BONDED GRINDING |
| KR101155902B1 (ko) * | 2010-03-11 | 2012-06-20 | 삼성모바일디스플레이주식회사 | 그라인더, 상기 그라인더를 사용한 연마 방법, 상기 연마 방법을 사용한 표시 장치의 제조 방법 및 이를 사용하여 제조한 표시 장치 |
| RU2012139661A (ru) | 2010-08-06 | 2014-09-20 | Сэнт-Гобэн Эбрейзивс, Инк. | Абразивный инструмент, способ его эксплуатации и способ чистовой обработки деталей |
| TWI613285B (zh) | 2010-09-03 | 2018-02-01 | 聖高拜磨料有限公司 | 粘結的磨料物品及形成方法 |
| TW201223699A (en) * | 2010-09-03 | 2012-06-16 | Saint Gobain Abrasives Inc | Bonded abrasive articles, method of forming such articles, and grinding performance of such articles |
| DE102010042040A1 (de) | 2010-10-06 | 2012-04-12 | Siltronic Ag | Verfahren zum Schleifen einer Halbleiterscheibe |
| TWI471196B (zh) | 2011-03-31 | 2015-02-01 | Saint Gobain Abrasives Inc | 用於高速磨削操作之磨料物品 |
| TWI470069B (zh) | 2011-03-31 | 2015-01-21 | Saint Gobain Abrasives Inc | 用於高速磨削操作之磨料物品 |
| CA2833342C (en) * | 2011-04-18 | 2020-05-12 | 3M Innovative Properties Company | Resin bonded grinding wheel |
| MX366227B (es) | 2011-11-23 | 2019-07-03 | Saint Gobain Abrasives Inc | Articulo abrasivo para operaciones de amolado de ultra alta velocidad de remocion de material. |
| US9266220B2 (en) | 2011-12-30 | 2016-02-23 | Saint-Gobain Abrasives, Inc. | Abrasive articles and method of forming same |
| TWI535535B (zh) * | 2012-07-06 | 2016-06-01 | 聖高拜磨料有限公司 | 用於低速研磨操作之磨料物品 |
| DE102012017969B4 (de) * | 2012-09-12 | 2017-06-29 | Center For Abrasives And Refractories Research & Development C.A.R.R.D. Gmbh | Agglomerat-Schleifkorn mit eingelagerten Mikrohohlkugeln |
| US9266219B2 (en) | 2012-12-31 | 2016-02-23 | Saint-Gobain Abrasives, Inc. | Bonded abrasive article and method of grinding |
| JP2016501735A (ja) | 2012-12-31 | 2016-01-21 | サンーゴバン アブレイシブズ,インコーポレイティド | 結合研磨物品および研削方法 |
| WO2014106159A1 (en) | 2012-12-31 | 2014-07-03 | Saint-Gobain Abrasives, Inc. | Bonded abrasive article and method of grinding |
| DE112014001102T5 (de) * | 2013-03-31 | 2015-11-19 | Saint-Gobain Abrasifs | Gebundener Schleifartikel und Schleifverfahren |
| EP3006150B2 (en) * | 2013-05-31 | 2022-10-05 | Toyota Motor Hokkaido, Inc. | Continuous-generation gear-wheel grinding method |
| WO2014210160A1 (en) * | 2013-06-25 | 2014-12-31 | Saint-Gobain Abrasives, Inc. | Abrasive article and method of making same |
| CN110337347B (zh) | 2017-02-28 | 2022-07-12 | 3M创新有限公司 | 金属粘结磨料制品及制备金属粘结磨料制品的方法 |
| CN111278604B (zh) * | 2017-09-28 | 2021-08-10 | 圣戈班磨料磨具有限公司 | 由包含碳化硅的非团聚磨料颗粒和无机粘结材料组成的磨料制品 |
| US11691247B2 (en) | 2017-12-28 | 2023-07-04 | Saint-Gobain Abrasives, Inc. | Bonded abrasive articles |
| CN112437713A (zh) | 2018-06-29 | 2021-03-02 | 圣戈班磨料磨具有限公司 | 磨料制品及其形成方法 |
| PL3814053T3 (pl) * | 2018-06-29 | 2026-02-23 | Saint-Gobain Abrasives, Inc. | Artykuły ścierne i sposoby ich tworzenia |
| WO2021141904A1 (en) * | 2020-01-06 | 2021-07-15 | Saint-Gobain Abrasives, Inc. | Abrasive article and method of use |
| WO2022011234A1 (en) * | 2020-07-10 | 2022-01-13 | Saint-Gobain Abrasives, Inc. | Bonded abrasive article and method of making the same |
| JP2024509813A (ja) | 2021-03-05 | 2024-03-05 | サンーゴバン アブレイシブズ,インコーポレイティド | 研磨物品及びそれを形成するための方法 |
| US12473475B2 (en) | 2021-03-05 | 2025-11-18 | Saint-Gobain Abrasives, Inc. | Abrasive articles and methods for forming same |
| CN115533770A (zh) * | 2021-06-30 | 2022-12-30 | 圣戈班磨料磨具有限公司 | 磨料制品及其形成方法 |
| CN113447380A (zh) * | 2021-07-30 | 2021-09-28 | 华侨大学 | 压划针尖吸附活性磨粒的方法 |
| CN113814484B (zh) * | 2021-09-06 | 2024-07-23 | 重庆大学 | 强力珩齿精加工渐开线齿轮表面结构的定量化表征方法 |
| EP4457058A4 (en) | 2021-12-30 | 2026-01-07 | Saint Gobain Abrasives Inc | ABRASIVE ARTICLES AND THEIR FORMATION PROCESSES |
| CN118591435A (zh) | 2021-12-30 | 2024-09-03 | 圣戈班磨料磨具有限公司 | 磨料制品及其形成方法 |
Family Cites Families (62)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1983082A (en) | 1930-06-19 | 1934-12-04 | Norton Co | Article of bonded granular material and method of making the same |
| US2194472A (en) | 1935-12-30 | 1940-03-26 | Carborundum Co | Production of abrasive materials |
| US2216728A (en) | 1935-12-31 | 1940-10-08 | Carborundum Co | Abrasive article and method of making the same |
| GB491659A (en) | 1937-03-06 | 1938-09-06 | Carborundum Co | Improvements in or relating to bonded abrasive articles |
| US3048482A (en) | 1958-10-22 | 1962-08-07 | Rexall Drug Co | Abrasive articles and methods of making the same |
| US3955324A (en) | 1965-10-10 | 1976-05-11 | Lindstroem Ab Olle | Agglomerates of metal-coated diamonds in a continuous synthetic resinous phase |
| DE1752612C2 (de) | 1968-06-21 | 1985-02-07 | Roc AG, Zug | Schleifkörper |
| US3982359A (en) | 1968-06-21 | 1976-09-28 | Roc A.G. | Abrasive member of bonded aggregates in an elastomeric matrix |
| HU171019B (hu) | 1972-09-25 | 1977-10-28 | I Sverkhtverdykh Materialov Ak | Shlifoval'nyj instrument |
| US3916584A (en) | 1973-03-22 | 1975-11-04 | Minnesota Mining & Mfg | Spheroidal composite particle and method of making |
| US4024675A (en) | 1974-05-14 | 1977-05-24 | Jury Vladimirovich Naidich | Method of producing aggregated abrasive grains |
| GB1523935A (en) | 1975-08-04 | 1978-09-06 | Norton Co | Resinoid bonded abrasive products |
| US4311489A (en) | 1978-08-04 | 1982-01-19 | Norton Company | Coated abrasive having brittle agglomerates of abrasive grain |
| US4486200A (en) | 1980-09-15 | 1984-12-04 | Minnesota Mining And Manufacturing Company | Method of making an abrasive article comprising abrasive agglomerates supported in a fibrous matrix |
| US4541842A (en) | 1980-12-29 | 1985-09-17 | Norton Company | Glass bonded abrasive agglomerates |
| US4393021A (en) | 1981-06-09 | 1983-07-12 | Vereinigte Schmirgel Und Maschinen-Fabriken Ag | Method for the manufacture of granular grit for use as abrasives |
| US4575384A (en) | 1984-05-31 | 1986-03-11 | Norton Company | Grinding wheel for grinding titanium |
| JPS61164772A (ja) | 1985-01-11 | 1986-07-25 | Mitsubishi Heavy Ind Ltd | 回転体研削装置 |
| US4652275A (en) | 1985-08-07 | 1987-03-24 | Minnesota Mining And Manufacturing Company | Erodable agglomerates and abrasive products containing the same |
| US4799939A (en) | 1987-02-26 | 1989-01-24 | Minnesota Mining And Manufacturing Company | Erodable agglomerates and abrasive products containing the same |
| US4989375A (en) | 1988-05-28 | 1991-02-05 | Noritake Co., Limited | Grinding wheel having high impact resistance, for grinding rolls as installed in place |
| US5096465A (en) | 1989-12-13 | 1992-03-17 | Norton Company | Diamond metal composite cutter and method for making same |
| US5039311A (en) | 1990-03-02 | 1991-08-13 | Minnesota Mining And Manufacturing Company | Abrasive granules |
| AT394964B (de) | 1990-07-23 | 1992-08-10 | Swarovski Tyrolit Schleif | Schleifkoerper |
| US5131926A (en) | 1991-03-15 | 1992-07-21 | Norton Company | Vitrified bonded finely milled sol gel aluminous bodies |
| US5127197A (en) | 1991-04-25 | 1992-07-07 | Brukvoort Wesley J | Abrasive article and processes for producing it |
| US5273558A (en) | 1991-08-30 | 1993-12-28 | Minnesota Mining And Manufacturing Company | Abrasive composition and articles incorporating same |
| US5203886A (en) | 1991-08-12 | 1993-04-20 | Norton Company | High porosity vitrified bonded grinding wheels |
| US5178644A (en) | 1992-01-23 | 1993-01-12 | Cincinnati Milacron Inc. | Method for making vitreous bonded abrasive article and article made by the method |
| US5549962A (en) | 1993-06-30 | 1996-08-27 | Minnesota Mining And Manufacturing Company | Precisely shaped particles and method of making the same |
| US5429648A (en) | 1993-09-23 | 1995-07-04 | Norton Company | Process for inducing porosity in an abrasive article |
| CH686787A5 (de) | 1993-10-15 | 1996-06-28 | Diametal Ag | Schleifbelag fuer Schleifwerkzeuge und Verfahren zur Herstellung des Schleifbelages. |
| BR9408041A (pt) | 1993-11-12 | 1996-12-24 | Minnesota Mining & Mfg | Processo para preparação de grão abrasivo à base de alumina alfa cerâmico cristalino grão abrasivo e artigo abrasivo |
| US6136288A (en) | 1993-12-16 | 2000-10-24 | Norton Company | Firing fines |
| US5489204A (en) | 1993-12-28 | 1996-02-06 | Minnesota Mining And Manufacturing Company | Apparatus for sintering abrasive grain |
| US5534106A (en) * | 1994-07-26 | 1996-07-09 | Kabushiki Kaisha Toshiba | Apparatus for processing semiconductor wafers |
| ZA956408B (en) | 1994-08-17 | 1996-03-11 | De Beers Ind Diamond | Abrasive body |
| 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 |
| AU694338B2 (en) | 1995-04-28 | 1998-07-16 | Minnesota Mining And Manufacturing Company | Abrasive article having a bond system comprising a polysiloxane |
| DE69628947D1 (de) | 1995-10-20 | 2003-08-07 | Minnesota Mining & Mfg | Anorganische phosphate enthaltende schleifartikel |
| US5607489A (en) | 1996-06-28 | 1997-03-04 | Norton Company | Vitreous grinding tool containing metal coated abrasive |
| WO1998003306A1 (en) | 1996-07-23 | 1998-01-29 | Minnesota Mining And Manufacturing Company | Structured abrasive article containing hollow spherical filler |
| US5738697A (en) | 1996-07-26 | 1998-04-14 | Norton Company | High permeability grinding wheels |
| US5738696A (en) | 1996-07-26 | 1998-04-14 | Norton Company | Method for making high permeability grinding wheels |
| JPH1119875A (ja) | 1997-06-30 | 1999-01-26 | Toyoda Mach Works Ltd | ビトリファイド砥石 |
| US5863308A (en) | 1997-10-31 | 1999-01-26 | Norton Company | Low temperature bond for abrasive tools |
| US6074278A (en) | 1998-01-30 | 2000-06-13 | Norton Company | High speed grinding wheel |
| US6354929B1 (en) | 1998-02-19 | 2002-03-12 | 3M Innovative Properties Company | Abrasive article and method of grinding glass |
| US6102789A (en) | 1998-03-27 | 2000-08-15 | Norton Company | Abrasive tools |
| US6086648A (en) | 1998-04-07 | 2000-07-11 | Norton Company | Bonded abrasive articles filled with oil/wax mixture |
| KR100615691B1 (ko) | 1998-12-18 | 2006-08-25 | 도소 가부시키가이샤 | 연마용 부재, 그것을 이용한 연마용 정반 및 연마방법 |
| US6056794A (en) | 1999-03-05 | 2000-05-02 | 3M Innovative Properties Company | Abrasive articles having bonding systems containing abrasive particles |
| US6261168B1 (en) * | 1999-05-21 | 2001-07-17 | Lam Research Corporation | Chemical mechanical planarization or polishing pad with sections having varied groove patterns |
| US6394888B1 (en) | 1999-05-28 | 2002-05-28 | Saint-Gobain Abrasive Technology Company | Abrasive tools for grinding electronic components |
| 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 |
| ATE302092T1 (de) | 2000-04-28 | 2005-09-15 | 3M Innovative Properties Co | Schleifmittel und verfahren zum schleifen von glas |
| CA2408249A1 (en) | 2000-05-09 | 2001-11-15 | 3M Innovative Properties Company | Porous abrasive article having ceramic abrasive composites, methods of making, and methods of use |
| EP1770143A3 (en) | 2000-10-06 | 2008-05-07 | 3M Innovative Properties Company | Agglomerate abrasive grain and a method of making the same |
| US6679758B2 (en) | 2002-04-11 | 2004-01-20 | Saint-Gobain Abrasives Technology Company | Porous abrasive articles with agglomerated abrasives |
| US6988937B2 (en) | 2002-04-11 | 2006-01-24 | Saint-Gobain Abrasives Technology Company | Method of roll grinding |
| US6797023B2 (en) | 2002-05-14 | 2004-09-28 | Saint-Gobain Abrasives Technology Company | Coated abrasives |
| US6602123B1 (en) * | 2002-09-13 | 2003-08-05 | Infineon Technologies Ag | Finishing pad design for multidirectional use |
-
2007
- 2007-10-01 US US11/865,558 patent/US7544114B2/en not_active Expired - Lifetime
-
2008
- 2008-10-01 AR ARP080104299A patent/AR068656A1/es not_active Application Discontinuation
- 2008-10-01 WO PCT/US2008/078425 patent/WO2009046091A1/en not_active Ceased
- 2008-10-01 TW TW097137821A patent/TWI370759B/zh not_active IP Right Cessation
- 2008-10-01 PL PL13178935T patent/PL2682232T3/pl unknown
- 2008-10-01 ES ES13178935T patent/ES2882324T3/es active Active
- 2008-10-01 PL PL08835947T patent/PL2217404T3/pl unknown
- 2008-10-01 EP EP08835947.6A patent/EP2217404B1/en active Active
- 2008-10-01 EP EP13178935.6A patent/EP2682232B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US7544114B2 (en) | 2009-06-09 |
| EP2217404B1 (en) | 2013-08-07 |
| ES2882324T3 (es) | 2021-12-01 |
| US20080085660A1 (en) | 2008-04-10 |
| TWI370759B (en) | 2012-08-21 |
| EP2682232A1 (en) | 2014-01-08 |
| EP2217404A1 (en) | 2010-08-18 |
| WO2009046091A1 (en) | 2009-04-09 |
| TW200927387A (en) | 2009-07-01 |
| AR068656A1 (es) | 2009-11-25 |
| EP2682232B1 (en) | 2021-05-12 |
| PL2682232T3 (pl) | 2021-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI370759B (en) | Abrasive articles with novel structures and methods for grinding | |
| TWI457206B (en) | Superabrasive tool having surface modified superabrasive particles and associated methods | |
| PL3578299T3 (pl) | Wyroby ścierne | |
| PL2079559T3 (pl) | Artykuł ścierny bez podłoża | |
| EP2307518A4 (en) | FIXED ABRASIVE PARTICLES AND ARTICLES MADE THEREFROM | |
| IL184728A0 (en) | Abrasive articles and methods for making same | |
| EP2076360A4 (en) | ABRASIVE ARTICLE OF EXTENDED LIFETIME AND ITS METHOD | |
| PL2370232T3 (pl) | Ukształtowane cząstki ścierne z rowkami | |
| IL211092A0 (en) | Polishing pad and method for manufacturing the same | |
| EP2118226A4 (en) | ABRASIVE ARTICLES HAVING NANOPARTICULAR LOADS AND PROCESS FOR THE PRODUCTION AND USE THEREOF | |
| GB0913341D0 (en) | Abrasive tools | |
| EP2470331A4 (en) | Structured abrasive article and method of using the same | |
| ZA201007315B (en) | Fixed abrasive articles utilizing coated abrasive particles | |
| EP2370231A4 (en) | BONDED GRINDING | |
| EP1996369A4 (en) | FLEXIBLE ABRASIVE ARTICLE | |
| EP2324956A4 (en) | POLISHING COMPOSITION AND THIS USE POLISHING METHOD | |
| EP1991393A4 (en) | GRINDING MATERIAL AND METHOD FOR THE PRODUCTION THEREOF | |
| EP2387484A4 (en) | PORTABLE MACHINE FOR GRINDING OPERATIONS AND THE LIKE | |
| IL215958A0 (en) | Abrasive article with improved grain retention and performance | |
| EP2231365A4 (en) | GRINDING BODY AND MANUFACTURING METHOD THEREFOR | |
| EP2328705A4 (en) | CUTTING CARTRIDGES AND MATERIAL REMOVAL TOOLS WITH THIS | |
| PL2222438T3 (pl) | Narzędzie ścierne | |
| ZA201102359B (en) | Abrasive molten grains | |
| EP2310168A4 (en) | SELF-BONDED, STUFFED GRINDING BODIES AND MACHINING WITH SUCH ITEMS | |
| GB0723611D0 (en) | Abrading material |