@article{rhoney_shih_scattergood_ott_mcspadden_2002, title={Wear mechanism of metal bond diamond wheels trued by wire electrical discharge machining}, volume={252}, ISSN={["0043-1648"]}, DOI={10.1016/S0043-1648(02)00019-4}, abstractNote={The stereographic scanning electron microscopy (SEM) imaging was used to investigate the wear mechanism in wire electrical discharge machining (EDM) truing of metal bond diamond wheels for ceramic grinding. A piece of the grinding wheel was removed after truing and grinding to enable the examination of wheel surface and measurement of diamond protrusion heights using a SEM and stereographic imaging software. The stereographic SEM imaging method was calibrated by comparing with the profilometer measurement results. On the wheel surface after wire EDM truing and before grinding, some diamond grain protruding heights were measured in the 32 μm level. Comparing to the 54 μm average size of the diamond grain, this indicated that over half of the diamond was exposed. During the wire EDM process, electrical sparks occur between the metal bond and EDM wire, which leaves the diamond protruded in the gap between the wire electrode and wheel. These protruding diamond grains with weak bond to the wheel were fractured under a light grinding condition. After heavy grinding, the diamond protrusion heights were estimated in the 5–15 μm range above the wear flat. A cavity created by grinding debris erosion wear of the wheel bond could be identified around the diamond grain.}, number={7-8}, journal={WEAR}, author={Rhoney, BK and Shih, AJ and Scattergood, RO and Ott, R and McSpadden, SB}, year={2002}, month={Apr}, pages={644–653} }
 @article{rhoney_shih_scattergood_akemon_gust_grant_2002, title={Wire electrical discharge machining of metal bond diamond wheels for ceramic grinding}, volume={42}, ISSN={["1879-2170"]}, DOI={10.1016/S0890-6955(02)00056-1}, abstractNote={The application of cylindrical wire Electrical Discharge Machining (EDM) for profile truing of metal bond diamond wheels is presented. Instead of using the mechanical force to break the diamond and matrix in the grinding wheel, the wire EDM process uses the thermal energy or electrical sparks between the wire and rotating grinding wheel to remove the metal bond and form the wheel. The design and manufacture of a corrosion-resistant, precise spindle with the high-electrical current capability for wire EDM truing of grinding wheel is first introduced. Three truing configurations were designed to study effects of wire EDM process parameters and to investigate the level of form accuracy and corner radii achievable by the wire EDM truing of diamond wheels. Results show that the wire EDM process can efficiently generate the μm-scale precision form on the diamond wheels. The wheel, after truing, was used to grind the silicon nitride workpiece. Grinding forces and wheel wear rate were measured. In the beginning of the grinding, high wheel wear rate was identified. The subsequent wheel wear rate was considerably lower and stabilized.}, number={12}, journal={INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE}, author={Rhoney, BK and Shih, AJ and Scattergood, RO and Akemon, JL and Gust, DJ and Grant, MB}, year={2002}, month={Sep}, pages={1355–1362} }