Abstract This investigation was made for the purpose of exploring possible effects of vibration in grinding including those conditions which do not cause “chatter.” As one possible approach to the problem, vibrations were induced artificially between the workpiece and the grinding wheel by vibrating specimens with an ultrasonic transducer. The results of the investigation definitely demonstrate that small vibrations at high frequencies can improve surface finish, can reduce temperature in the ground surface, can reduce the incidence of thermal cracks, and can minimize the effects of variations in hardness within a grinding wheel. The investigation indicates the possibility of applying high-frequency and even ultrasonic vibrations to selected operations to improve the grinding process. It would also appear to explain some of the well-known characteristics of grinding associated with the use by precision-grinder operators of sound or noise as an indication of the process.
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