Diamond and CBN abrasive grinding tools are mainly made of diamond, cbn and other bonded abrasive tools. Due to the high strength and good wear resistance of diamond and CBN , the consolidation abrasive tools made with them are different from the ordinary abrasive consolidation abrasive tools. The superhard abrasive layer is a cutting part composed of superhard abrasive and bond.The matrix, which is composed of metal, bakelite or ceramic materials, plays a supporting role in grinding