Abrasive article for ultra high material removal rate grinding operations

An abrasive article comprising:

• a bonded abrasive body including:
• a bond material comprising an inorganic material;
• abrasive particulate material contained in the bond material, the abrasive particulate material including abrasive agglomerates and unagglomerated abrasive particles;
• a porosity of at least about 42 vol % of the total volume of the bonded abrasive body;
• and
• the bonded abrasive body having a maximum material removal rate of at least about 1.6 in.3/min./in. [17.3 mm3/s/mm] during an ultra-high material removal rate (UHMRR) grinding operation.

An abrasive article comprising:

• a bonded abrasive body including:
• a bond material in an amount of not greater than about 15 vol % for the total volume of the body;
• abrasive particulate material contained in the bond material, the abrasive particulate material including abrasive agglomerates and unagglomerated abrasive particles, wherein the body comprises an abrasive particulate ratio (APp:APagg) within a range between 3:1 and about 1:3, wherein APp represents the amount (vol %) of unagglomerated abrasive particles present in the body and APagg represents the amount (vol %) of abrasive agglomerates present in the body;
• and
• a porosity of at least about 42 vol % of the total volume of the bonded abrasive body.