Abstract
In the current study, the influence of various process parameters such as tool material, abrasive type, slurry grit size and power rating on the surface quality and the micro-hardness of the machined surface has been reported while machining pure titanium (ASTM Grade-I) using ultrasonic machining. Taguchi’s robust design approach has been utilized for planning the experiments and optimizing the experimental results of surface roughness and micro-hardness. The surface topography of the machined samples revealed that the mode of material removal is related to the energy input rate. The mode of material removal may change from plastic deformation to brittle fracture under varied conditions of energy input rate. The hardness gradient has also been evaluated for selected process conditions and correlated with the energy input rate corresponding to each of the conditions.
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