Patent ID: 7544114

Claim:
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).