BY VITRIFIED BONDED CBN GRINDING WHEELS, THE EROSION OF THE BONDING MATRIX DOMINATES AS THE WEAR MECHANISM. GRINDING TESTS CONFIRM THAT THE LOAD FROM THE CONTACT ZONE IS AFFECTED BY THE GRINDING CHIPS. EMPIRICAL DATA DEMONSTRATES THAT USING THE SAME SPECIFICATIONS OF VITRIFIED BONDED, BUT DIFFERENTLY SIZED CBN WHEELS, THE GRINDING RATIO G CAN BE DRAWN AS A MATHEMATICAL FUNCTION OF A (subscript cu).
