Experiment study on damping characteristics of the turning tool holder materials

Abstract In general machine tool vibration that occurs during any metal cutting operation or machining process. These vibrations increase the temperature of the cutting tool in additional which ultimately causes the reduction of cutting tool life. In this study two types of materials (Copper and Brass) were used as a damping material to decrease cutting tool vibration and cutting tool tip temperature. The structural modification was made in the normal cutting tool holder to provide the additional damping effects during the metal cutting operation. A new damped turning tool holder was fabricated by fitting these materials to improve the stability of the cutting tool holder. The standard and recommended levels of input parameters like cutting speed, feed rate, depth of cut and overhang length of the tool were selected for experimental works. The influence of input parameters was investigated for various cutting conditions. From the result, the optimum conditions and desired outcome was obtained with the damped turning tool holder also considerably vibration control was achieved during turning operation.