A magneto-rheological damper for on-site machining vibration control: From design to experimental characterization of its performance

Abstract

On-site machining is a specific domain where damaging vibrations can be generated by the dynamic interaction between the tool and the workpiece. These vibrations are often the cause of the degradation of the machined part and the cutting tool. Therefore, it is necessary to suppress and/or control this phenomenon. For this purpose, the design of the magnetorheological damper, which can be used for the semi-active control of the on-site machining vibrations, is presented in this paper. Then, we investigate experimentally the efficiency of our conception through tests with a light milling portable machine frequently used by on-site machining. The results of the experiments show a reduction in vibrations of 20 % and 40 % at low frequency and high frequency, respectively. It is highlighted that the magnetorheological damper has good effect on on-site machining process.