US 12,064,851 B2
Abrasive articles and methods for forming same
Maureen A. Brosnan, West Boylston, MA (US); Srikanth Rapaka, Natick, MA (US); Nilanjan Sarangi, Shrewsbury, MA (US); Charles W. Bleakney, IV, Northborough, MA (US); Craig M. Adams, Webster, MA (US); and Run Toun, Worcester, 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 Jun. 29, 2022, as Appl. No. 17/809,744.
Claims priority of provisional application 63/217,056, filed on Jun. 30, 2021.
Prior Publication US 2023/0001542 A1, Jan. 5, 2023
Int. Cl. B24D 3/04 (2006.01); B24D 3/34 (2006.01)
CPC B24D 3/04 (2013.01) [B24D 3/342 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of making an abrasive article comprising:
forming a mixture comprising abrasive particles, a bond precursor material and a gelling agent;
forming a bonded abrasive body from the mixture, wherein the bonded abrasive body comprises:
abrasive particles contained within the bond material;
wherein the abrasive particles have a particle size distribution defining a multimodal distribution having a first mode and a second mode, wherein the particle size of the first mode, Sab1 is smaller than the particle size of the second mode Sab2, wherein Sab1 is at least 1% and no greater than 80% of Sab2, and wherein the abrasive article comprises a Hardness Variation Factor 1 (HVE1) within a range of at least 0.001 mm and not greater 0.20 mm.