| US 7,544,114 B2 | ||
| Abrasive articles with novel structures and methods for grinding | ||
| Xavier Orlhac, Holden, Mass. (US) | ||
| Assigned to Saint-Gobain Technology Company, Worcester, Mass. (US) | ||
| Filed on Oct. 01, 2007, as Appl. No. 11/865,558. | ||
| Application 11/865558 is a continuation in part of application No. 10/510541, filed on Oct. 07, 2004, granted, now 7,275,980. | ||
| Application 10/510541 is a continuation in part of application No. 10/120969, filed on Apr. 11, 2002, granted, now 6,679,758. | ||
| Application 10/120969 is a continuation in part of application No. 10/328802, filed on Dec. 24, 2002, granted, now 6,988,937. | ||
| Prior Publication US 2008/0085660 A1, Apr. 10, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. B24B 1/00 (2006.01); B24B 11/00 (2006.01) | ||
| U.S. Cl. 451—28 [451/527; 451/534] | 9 Claims |
| 1. A bonded abrasive tool comprising a three-dimensional composite of:
(a) 22-46 vol % abrasive grains bonded with 4-20 vol % inorganic bond material, wherein the abrasive grains form a reticulated
network within the inorganic bond material, and wherein the 10-100 vol % of the abrasive grains are in the form of a plurality
of abrasive grains agglomerated together; and
(b) 40-68 vol % interconnected porosity within the reticulated network thereby making the composite permeable to fluid flow
via channel formed with interconnected porosity; wherein the bonded abrasive tool has an elastic modulus value of 25-50 GPa
and the bonded abrasive tool has a minimum burst speed of 4000 sfpm (20.32 m/s).
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