Optimisation of turning parameters of Inconel 718 alloy using RSM
by M. Aruna; V. Dhanalakshmi
International Journal of Manufacturing Technology and Management (IJMTM), Vol. 25, No. 1/2/3, 2012

Abstract: Nickel-based super alloy, Inconel 718 is extensively used in sophisticated applications due to its unique properties desired for engineering applications. Due to its peculiar characteristics, machining of Inconel 718 is complicated and costly. The present work is an attempt to make use of Taguchi optimisation technique to optimise cutting parameters during high speed turning of Inconel 718 using cermet tool. The performance of the cermet tool is described using response surface methodology (RSM). The experimental plan is based on central composite design (CCD). Surface roughness and flank wear are the response variables investigated. The experimental results indicate that the proposed mathematical models suggested could adequately describe the performance indicators within the limits of the factors that are being investigated. The cutting speed is the most significant factor that influences the surface roughness and flank wear. Yet, there are other factors that provide secondary contributions to the performance indicators. The adequacy of the predictive model is verified using analysis of variance.

Online publication date: Wed, 26-Nov-2014

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