Abrasive tools and methods for forming same

Abstract

An abrasive tool including a bonded abrasive including a body comprising abrasive particles contained within a three-dimensional matrix of bond material, the bond material including an organic material, the abrasive tool further including a first filler contained within the three-dimensional matrix of bond material including a silicate in a first content and a second filler contained within the three-dimensional matrix of bond material including a sulfate in a second content, and the first content is greater than the second content.

1 . An abrasive tool comprising:
 a bonded abrasive including a body comprising a first abrasive region including:   abrasive particles contained within a bond material, the bond material comprising an organic material;   a first filler contained within the bond material comprising a silicate in a first content; and   a second filler contained within the bond material comprising a sulfate in a second content; and   wherein the first content is greater than the second content.   
     
     
         2 . The abrasive tool of  claim 1 , wherein the first filler comprises a calcium silicate compound. 
     
     
         3 . The abrasive tool of  claim 2 , wherein the first filler comprises wollastonite. 
     
     
         4 . The abrasive tool of  claim 1 , wherein the first content is within a range including at least 0.2 wt % and not greater than 20 wt % for a total weight of the first abrasive region. 
     
     
         5 . The abrasive tool of  claim 4 , wherein the first content is within a range including at least 2.8 wt % and not greater than 8 wt % for a total weight of the first abrasive region. 
     
     
         6 . The abrasive tool of  claim 1 , the second filler comprises a potassium sulfate compound. 
     
     
         7 . The abrasive tool of  claim 6 , wherein the second filler consists essentially of potassium sulfate. 
     
     
         8 . The abrasive tool of  claim 1 , wherein the second content of the second filler is within a range including 1 wt % and not greater than 4 wt % for a total weight of the first abrasive region. 
     
     
         9 . The abrasive tool of  claim 1 , wherein the abrasive region comprises a ratio (C1:C2) of the first content (C1) to the second content (C2) of at least 1.5:1 and not greater than 3.5:1. 
     
     
         10 . The abrasive tool of  claim 1 , further comprising a third filler contained within the bond material comprising a halide-containing compound in a third content. 
     
     
         11 . The abrasive tool of  claim 10 , wherein the third filler comprises sodium hexafluoroaluminate (Na 3 AlF 6 ). 
     
     
         12 . The abrasive tool of  claim 10 , wherein the third filler has a third content of at least 2.6 wt % and not greater than 4 wt %. 
     
     
         13 . The abrasive tool of  claim 1 , wherein the first filler is a particle having an aspect ratio of length:width within a range including greater than 5:1 and less than 15:1. 
     
     
         14 . The abrasive tool of  claim 13 , wherein the first filler is a particle having an aspect ratio within a range including at least 7:1 and not greater than 10:1. 
     
     
         15 . An abrasive tool comprising:
 a bonded abrasive including a body having a thickness not greater than 10 mm comprising:
 a first abrasive region including abrasive particles contained within a bond material, the bond material comprising an organic material, 
   wherein the first abrasive region comprises a first filler in a first content comprising a silicate contained within the bond material, wherein the first filler is a particle having an aspect ratio of length:width of at least 1.5:1, and   a second filler contained within the bond material comprising a sulfate in a second content   
     
     
         16 . The abrasive tool of  claim 15 , wherein the abrasive region comprises a ratio (C1:C2) of the first content (C1) to the second content (C2) of at least 1.1:1. 
     
     
         17 . The abrasive tool of  claim 15 , wherein the first filler comprises an inosilicate compound. 
     
     
         18 . The abrasive tool of  claim 15 , wherein the first filler comprises an aspect ratio within a range including at least 7:1 and not greater than 10:1. 
     
     
         19 . The abrasive tool of  claim 15 , wherein the second filler comprises a potassium sulfate compound. 
     
     
         20 . The abrasive tool of  claim 15 , wherein the first abrasive region includes a content of abrasive particles within a range including at least 30 wt % and not greater than 90 wt % for a total weight of the first abrasive region.