Paper Title:

Surface Roughness Optimization of some Machining Parameters in Turning Operations Using Taguchi Method

Periodical Advanced Materials Research (Volumes 62 - 64)
Main Theme Advances in Materials and Systems Technologies II
Edited by A.O. Akii Ibhadode, I.A. Igbafe and B.U. Anyata
Pages 613-620
DOI 10.4028/www.scientific.net/AMR.62-64.613
Citation Ishaya Musa Dagwa, 2009, Advanced Materials Research, 62-64, 613
Online since February, 2009
Authors Ishaya Musa Dagwa
Keywords Analysis of Variance (ANOVA), Machining Parameters, Signal-to-Noise Ratio (SNR), Surface Roughness Optimization, Taguchi Design Method
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Abstract

In this study, an attempt has been made to optimize cutting parameters (cutting speed, depth of cut, and feed rate) in conventional turning operations. A Taguchi orthogonal array (L933) was used in surface roughness optimization of a solid round bar of mild steel material. The experimental runs were randomized; two skilled machinists were involved in the turning operation using the same machining parameters. ANOVA analysis was performed to identify the percentage contribution of the factors affecting surface roughness during machining. The optimal cutting combination was determined by using the signal-to-noise ratio and the following results were obtained; speed (level 2) = 55.m/min, depth of cut (level 3) = 0.08mm, and feed rate (levels 3) = at 0.08mm/rev. A prediction of surface roughness was carried out using the optimal setting followed by a confirmatory test on the lathe. The result shows that the confirmatory runs compared favourably (96.44%) with the predicted surface roughness.