Analysis and optimisation of machining parameters in micro turning using RSM Online publication date: Fri, 26-Jun-2015
by S. Selvakumar; R. Ravi Kumar; K. Ganesan
International Journal of Materials and Product Technology (IJMPT), Vol. 51, No. 1, 2015
Abstract: Miniaturisation of industrial products has been the trend of technological development for creating smaller and precision components which plays an important role in today's need. Titanium alloy Gr.2 is one of the most extensively used Ti alloys for high temperature application components, because of its low weight and high strength even at elevated temperatures for applications like aerospace gas turbine compartments. In this paper, the performance of micro turning of titanium alloy with cermet insert is investigated using response surface methodology and Box-Behnken design (BBD). Two empirical models have been developed for predicting the tool wear and surface roughness. The analysis reveals that the cutting speed and feed rate are more influencing parameters on responses. The optimisation results showed that the combination of medium spindle speed, feed rate, and high depth of cut are necessary to minimise the tool wear and surface roughness. A verification experiment is conducted and compared.
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