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In this paper, we present a case study of vibration suppression based on the application of active damping to the small boring process of a boring bar with diameter below . The proposed active damping system consists of an acceleration sensor for real-time monitoring of the vibration signal, a driver for phase control in a computer program, and piezoelectric actuators for damping. In this system, the vibration signals are detected by the acceleration sensor and sent to the computer as an input. The phase shift parameter of the natural frequency of the input signal is sent to the data acquisition board in the computer and calculated by the phase control program. This study confirmed the effectiveness of this damping system, and it opens up the possibility of the development of active damping systems for small boring processes.

Study of Active Damping Boring Bar Using Piezoelectric Actuator for Small Boring Process