Abstract
In this paper, the results of an experimental study conducted for precision machining of chromium zirconium copper alloy C18150 have been reported. The input parameters include tool overhang, tool nose radius, feed rate, spindle speed and depth of cut. A flat profile is generated on a disc of chromium zirconium copper alloy C18150 with three performance characteristics, surface roughness (Ra), profile error (Pt) and waviness error (Wa). The process parameters are optimised to obtain best surface finish with minimum profile and waviness errors. Taguchi approach coupled with grey relational analysis has been used to determine optimum combination of input process parameters. The best values of surface finish obtained after multi-responses optimisation is 12.4 nm having profile error and Wa of 0.166 µm and 0.071 µm respectively.
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