US 11,667,009 B2
Bonded abrasive article and method of making the same
Cecile O. Mejean, Acton, MA (US); John S. Hagan, Shrewsbury, MA (US); Linda S. Bateman, Spencer, MA (US); Alexandre Temperelli, Boston, MA (US); Taewook Hwang, Acton, MA (US); Ramanujam Vedantham, Shrewsbury, MA (US); John M. Gulcius, Shrewsbury, MA (US); and Maureen A. Brosnan, West Boylston, MA (US)
Assigned to SAINT-GOBAIN ABRASIVES, INC., Worcester, MA (US); and SAINT-GOBAIN ABRASIFS, Conflans-Sainte-Honorine (FR)
Filed by SAINT-GOBAIN ABRASIVES, INC., Worcester, MA (US); and SAINT-GOBAIN ABRASIFS, Conflans-Sainte-Honorine (FR)
Filed on Jul. 9, 2021, as Appl. No. 17/371,401.
Claims priority of provisional application 63/050,620, filed on Jul. 10, 2020.
Prior Publication US 2022/0009056 A1, Jan. 13, 2022
Int. Cl. B24D 3/18 (2006.01)
CPC B24D 3/18 (2013.01) 34 Claims
 
1. An abrasive article comprising:
a body including a bond material, abrasive particles, and a plurality of pores, wherein the bond material comprises a vitreous material, and
the abrasive particles are contained in the bond material and comprise a superabrasive material;
wherein the plurality of pores define a pore size distribution having an average pore size (D50) and a 90th percentile value (D90), and further wherein the distance between the 90th percentile (D90) and the average pore size (D50) is not greater than 1 micron,
and wherein the body comprises at least one of:
a porosity of at least 40 vol % and not greater than 70 vol % for a total volume of the body;
a content of abrasive particles of at least 10 wt % and not greater than 94 wt % for a total weight of the body;
an average particle size (D50) of the abrasive particles of at least 0.05 microns and not greater than 5 microns;
an average pore size (D50) of the plurality of pores being at least 0.1 microns and not greater than 5 microns; or
any combination thereof.