ABRASIVE ARTICLE FOR ULTRA HIGH MATERIAL REMOVAL RATE GRINDING OPERATIONS

摘要

An abrasive article including a bonded abrasive body having a bond material present in an amount of not greater than about 15 vol pcnt 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 pcnt ) of unagglomerated abrasive particles present in the body and APagg represents the amount (vol pcnt ) of abrasive agglomerates present in the body, and a porosity of at least about 42 vol pcnt of the total volume of the bonded abrasive body.