[특허]Abrasive article for high-speed grinding operations

Abrasive article for high-speed grinding operations 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B24D-003/14 B24D-007/00 B24D-005/00
출원번호	US-0436629 (2012-03-30)
등록번호	US-9539701 (2017-01-10)
발명자 / 주소	Sarangi, Nilanjan Fix, Renaud Woods, Stephen Gaffney, Jim M. Campaniello, John Besse, John R. Fox, Stephen E.
출원인 / 주소	SAINT-GOBAIN ABRASIVES, INC.
대리인 / 주소	Abel Law Group, LLP
인용정보	피인용 횟수 : 0 인용 특허 : 39

초록 ▼

An abrasive article includes a bonded abrasive body having abrasive particles comprising microcrystalline alumina (MCA) contained within a bond material. In an embodiment, the bonded abrasive body has a strength ratio (MOR/MOE) of at least about 0.80. Additionally, the bonded abrasive body may have a MOR of at least 40 MPa for a MOE or at least about 40 GPa and the bonded abrasive body may be capable of grinding a workpiece that includes metal at a speed of at least about 60 m/s at a material removal rate of at least about 0.4 in3/min/in (258 mm3/min/mm).

대표청구항 ▼

1. An abrasive article comprising: a bonded abrasive body having abrasive particles comprising microcrystalline alumina (MCA) contained within a single phase vitreous bond material;wherein the bonded abrasive body comprises: a strength ratio (MOR/MOE) of at least 1.0;a porosity content of at least 42 vol % and not greater than 56 vol % for the total volume of the bonded abrasive body,an abrasive particle content of at least 42 vol % and not greater than 52 vol % for the total volume of the bonded abrasive body; anda bond material content of at least 6 vol % and not greater than 14 vol % for the total volume of the bonded abrasive body; andwherein the single phase vitreous bond material comprises: a content of boron oxide (B2O3) in an amount of at least 13 wt % and not greater than 17 wt % for a total weight of the bond material; anda content of silicon oxide (SiO2) in a wt % amount of at least about 1.5 times greater than the amount of boron oxide (B2O3) and not greater than about 5 times greater than the amount of boron oxide (B2O3). 2. The abrasive article of claim 1, wherein the bonded abrasive body is capable of grinding a workpiece comprising metal at a material removal rate of at least about 0.4 in3/min/in (258 mm3/min/mm). 3. The abrasive article of claim 1, wherein the bonded abrasive body comprises a MOR of at least 40 MPa and a MOE of at least 40 GPa. 4. The abrasive article of claim 1, wherein the bond material comprises a content of silicon oxide (SiO2) in an amount of not greater than about 52 wt % for a total weight of the bond material. 5. The abrasive article as recited in claim 1, wherein the bonded abrasive body is sintered at a temperature of not greater than about 1000° C. 6. The abrasive article as recited in claim 1, wherein the bonded abrasive body comprises a MOR of at least 45 MPa and a MOE of at least 40 GPa. 7. The abrasive article as recited in claim 1, wherein the bonded abrasive body is capable of grinding a workpiece comprising metal at a speed of at least about 60 m/s. 8. The abrasive article as recited in claim 1, wherein the bond material comprises a content of lithium oxide (Li2O) in an amount of at least about 2 wt % and not greater than about 5 wt % for a total weight of the bond material. 9. The abrasive article as recited in claim 1, wherein the bond material comprises not greater than about 1.0 wt % phosphorous oxide (P2O5). 10. The abrasive article as recited in claim 1, wherein the strength ratio (MOR/MOE) is at least 1.05 and not greater than 3.00. 11. The abrasive article as recited in claim 1, wherein the bonded abrasive body comprises a MOR of at least 48 MPa and a MOE of at least 40 GPa. 12. The abrasive article as recited in claim 1, wherein the bond material comprises a content of sodium oxide (Na2O) of at least about 5 wt % and not greater than about 10 wt % for a total weight of the bond material. 13. The abrasive article as recited in claim 1, wherein the bond material comprises a content of potassium oxide (K2O) of at least about 2 wt % and not greater than about 5 wt % for a total weight of the bond material. 14. The abrasive article as recited in claim 1, wherein the bond material comprises a total content of alkali oxide compound (R2O) of at least about 10 wt % and not greater than about 20 wt % for a total weight of the bond material. 15. The abrasive article of claim 1, wherein the bond material comprises not greater than 3 different alkaline earth oxide compounds (RO) selected from the group consisting of calcium oxide (CaO), magnesium oxide (MgO), barium oxide (BaO), and strontium oxide (SrO). 16. The abrasive article of claim 1, wherein the bond material comprises an alkaline earth oxide compound (RO) and wherein a total amount of alkaline earth oxide compound (RO) present in the bond material is not greater than about 3.0 wt %. 17. The abrasive article of claim 1, wherein the bond material comprises a content of aluminum oxide (Al2O3) of at least about 15 wt % and not greater than about 20 wt % for a total weight of the bond material. 18. The abrasive article of claim 1, wherein the vitreous bond material comprises: a content of silicon oxide (SiO2) in an amount of not greater than about 52 wt %;a content of aluminum oxide (Al2O3) in an amount of at least about 16 wt %;a silicon oxide (SiO2) to aluminum oxide (Al2O3) ratio (SiO2:Al2O3) of not greater than about 2.9;a content of calcium oxide (CaO) in an amount of at least about 0.5 wt % and not greater than about 2 wt %;a content of lithium oxide (Li2O) in an amount of at least about 3 wt % and not greater than about 4 wt %;a content of sodium oxide (Na2O) in an amount of at least about 6 wt % and not greater than about 8 wt %;a content of potassium oxide (K2O) in an amount of at least about 2 wt % and not greater than about 3 wt %;a content of boron oxide (B2O3) in an amount of at least 13 wt % and not greater than 17 wt %; anda content of phosphorous oxide (P2O5), iron oxide (Fe2O3), titanium oxide (TiO2), and magnesium oxide (MgO), each in an amount of not greater than a trace amount. 19. The abrasive article of claim 1, wherein the bond material comprises at least one alkali oxide compound (R2O) and at least one alkaline earth compound (RO), and wherein a total content of a combination of alkali oxide compounds (R2O) and a total content of alkaline earth compounds (RO) is at least 14 wt % of a total weight of the bond material. 20. The abrasive article of claim 1, wherein the strength ratio (MOR/MOE) is at least 1.1 and not greater than 2.00.

이 특허에 인용된 특허 (39)

Fritz, Peter J.; Lee, Chong Soo; Malaske, James W., Abrasive article.
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Meyer Gerald W. ; Wu Mianxue ; Keil Elinor B., Abrasive article bonded using a hybrid bond.
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Bonner,Anne M.; Bright,Eric; Lambert,Edward L.; Matsumoto,Dean S.; Orlhac,Xavier; Sheldon,David A., Abrasive articles with novel structures and methods for grinding.
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Nelson Leonard E. (Lake Elmo MN) Van Loc X. (Minneapolis MN), Abrasive composition and articles incorporating same.
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Cottringer Thomas E. (Niagara Falls CAX) van de Merwe Ronald H. (Niagara Falls CAX) Bauer Ralph (Niagara Falls CAX), Abrasive material and method for preparing the same.
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Wood, William P.; McArdle, James L., Agglomerate abrasive grain and a method of making the same.
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Sheldon David A. (Millbury MA) Lundberg Robert S. (Charlton City MA), Alumina abrasive wheel with improved corner holding.
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Rossetti ; Jr. George A. ; Fox Stephen E. ; Tricard Marc J. M., Bonded abrasive articles filled with oil/wax mixture.
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Kalinowski Paul W. (Boylston MA) Ramakrishnan Muni S. (Northboro MA) Rue Charles V. (Petersham MA) Sheldon David A. (Worcester MA) Swanson Brian E. (Northboro MA), Bonded abrasive products containing sintered sol gel alumina abrasive filaments.
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Kalinowski, Paul W.; Ramakrishnan, Muni S.; Rue, Charles V.; Sheldon, David A.; Swanson, Brian E., Bonded abrasive products containing sintered sol gel alumina abrasive filaments.
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Rue Charles V. (Petersham MA) Pukaite Leonard G. (West Boylston MA) Subramanian Krishnamoorthy (Groton MA), Bonded abrasive tools with combination of finely microcrystalline aluminous abrasive and a superabrasive.
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Rue Charles V. (Petersham MA) Pukaite Leonard G. (West Boylston MA) Subramanian Krishnamoorthy (Groton MA), Bonded abrasive tools with combination of finely microcrystalline aluminous abrasive and a superbrasive.
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Carman Lee A. (Worcester MA) Li Xiaoming (Shrewsbury MA), Bonding adjuvants for vitreous bond formulations and process for bonding with.
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Hay John (Shrewsbury MA) Markhoff-Matheny Carole J. (Leicester MA) Swanson Brian E. (Northboro MA), Frit bonded abrasive wheel.
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Sheldon David A. (Worcester) Markhoff-Matheny Carole J. (Leicester) Terragni Renato (Holden MA), High porosity vitrified bonded grinding wheels.
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Wu Mianxue ; Carman Lee A. ; Aspensjo Lars,DEX, High speed grinding wheel.
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Mark K. Krueger ; Soo C. Yoon ; Ken G. Forney ; Henry Turchin ; Cor A. Smits, Impregnated grinding wheel.
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Qi Dongxin,CNX ; Lundberg Robert S., Low temperature bond for abrasive tools.
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Bonner,Anne M.; Matsumoto,Dean S.; Lambert,Edward L.; Bright,Eric, Method of roll grinding.
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Janz Peter (Klagenfurt ATX) Winkler Herwig (Klagenfurt ATX) Gottschamel Georg (Treibach ATX), Microcrystalline abrasive material and method of manufacture.
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Wood Thomas E. (Maplewood MN) Wilson David M. (Roseville MN) Sowman Harold G. (Stillwater MN), Microcrystalline alumina-based ceramic articles.
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Leitheiser Melvin A. (Stillwater MN) Sowman Harold G. (Maplewood MN), Non-fused aluminum oxide-based abrasive mineral.
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Bright, Eric; Wu, Mianxue, Porous abrasive articles with agglomerated abrasives.
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Bright,Eric; Wu,Mianxue, Porous abrasive articles with agglomerated abrasives.
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Bright,Eric; Wu,Mianxue, Porous abrasive articles with agglomerated abrasives and method for making the agglomerated abrasives.
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Schwabel Mark G. (Cottage Grove MN), Process for durable sol-gel produced alumina-based ceramics, abrasive grain and abrasive products.
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Sheldon David A. (9 Hayward Glen Dr. Millbury MA 01527) Lundberg Robert S. (167 City Depot Rd. Charlton City MA 01508) Li Xiaoming (465 Boston Turnpike ; Apt. E3 Shrewsbury MA 01545), Sol-gel alumina abrasive wheel with improved corner holding.
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Schwetz Karl A. (Sulzberg DEX) Reinmuth Klaus (Durach DEX) Hunold Klaus (Kempten DEX) Isemann Franz (Oberstdorf DEX), Substantially pore-free sintered polycrystalline articles of a 상세보기

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Abrasive article for high-speed grinding operations 원문보기

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Abrasive article for high-speed grinding operations 원문보기

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