In this article, a new active approach is proposed to attenuate the vibrations of a boring bar which can deteriorate the quality of machined surface. A Voice Coil Actuator (VCA) has been introduced as an active dynamic absorber to damp these vibrations. The study begins with a modal analysis to establish the parameters of the 720 mm long slender boring bar. Subsequently, a theoretical model is numerically integrated to find the impact response and investigate the effectiveness and of the proposed velocity feedback method. Lastly, experimental results were conducted with the velocity feedback method using two different voltage coefficients of 1.2 V and 1.6 V, which demonstrate a significant reduction in boring bar vibrations. Thus, the developed method can be used for reducing chatter vibration in boring bars with large overhang.

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