Abstract

Our previous studies demonstrated that an ultrasonic monopole pulse with ringing suppression can be generated by utilizing a half sine voltage waveform and its generating method. The resultant vibration amplitude of the ultrasonic monopole pulse is too small for high-power ultrasonic application. However, ringing suppression provides advantages for a minimized jumping phenomenon, and can be applied to improve surface quality when machining hard and brittle material. A small displacement of vibration amplitude is suitable to reduce the finish machining margin, while suppressing microcracking and chipping. In addition, machining application using an ultrasonic monopole pulse is predominately unreported. Therefore, we design a bolt-clamped Langevin type transducer with a tool clamping system for generating a high-power ultrasonic monopole pulse with suppression ringing for the experimentation of ultrasonic burnishing and the observed effect upon the machined surface.

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