Statistical analysis of magnetorheological ball end finishing parameters using response surface methodology
by Mahendra Singh Niranjan; Sunil Jha
International Journal of Manufacturing Technology and Management (IJMTM), Vol. 30, No. 3/4, 2016

Abstract: Bidisperse magnetorheological polishing fluid (BMRPF) was used to gently finish work-piece surfaces on ball end magnetorheological finishing (BEMRF) tool. BMRPF was synthesised with optimum composition obtained by vibration sample magnetometer (VSM) test and magnetorheological characterisation which gives maximum magnetisation and yield behaviour. A five-levels three-factors central composite design of experiments (DOE) was used to develop an experimental plan for investigating process parameters' effect on percentage reduction in surface roughness (%ΔR_s). Response surface methodology (RSM) was used to predict profile and surface roughness. Experiments were conducted on mild steel and surface roughness before and after experiments were measured. An effective second order response surface model for %ΔR_s was obtained with significant factors and their interactions. Physical interpretation of process parameters' effect on %ΔR_s was analysed and optimum values were obtained. Experiment was further conducted with optimum process parameters, and %ΔR_s was calculated then compared with maximum %ΔR_s obtained by regression model.

Online publication date: Sat, 16-Jul-2016

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