ULTRASONIC SUPERIMPOSED GRINDING REPRESENTS A MODIFICATION OF THE CONVENTIONAL PENDULUM GRINDING PROCESS. THE GRINDING WHEEL ROTATION IN WORKPIECE FEED DIRECTION IS SUPERIMPOSED BY A HIGH-FREQUENCY VIBRATION OF THE WORKPIECE IN GRINDING WHEEL AXIS DIRECTION. AS A RESULT OF THIS WORKPIECE VIBRATION THERE IS A CHANGE IN THE REMOVAL BEHAVIOR OF SILICON CARBIDE CERAMICS, SO THERE IS NO JAGGED SURFACE MICROTOPOGRAPHY AS IN CONVENTIONAL PENDULUM GRINDING, BUT A MORE SMOOTHED OVER STRUCTURE AS IN CONVENTIONAL PENDULUM OF INDIVIDUAL PARTICLES AND THUS APPEARS BETTER SUITED FOR TRIBO-MECHANICALLY LOADED FUNCTION SURFACES IN SILICON CARBIDE CERAMIC.