Effect of Cutting Parameters on Tool Wear, Surface Roughness and Material Removal Rate During Dry Turning of EN-31 Steel

ISBN 978-93-82338-21-5 | © 2012 Bonfring Abstract--The present paper is an experimental study to investigate the effect of cutting parameters (cutting speed, depth of cut and feed) on tool wear, surface roughness and material removal rate (MRR) during dry turning of EN-31 steel. Turning experiments were conducted with cutting speeds: 250, 300, 350 m/min, feeds: 0.15, 0.2, 0.25 mm/rev and depth oh cuts: 0.5, 1.0, 1.5 mm. The experimental layout was designed based on the Taguchi’s L9 (3 4 ) Orthogonal array technique and analysis of variance (ANOVA) was performed to identify the effect of the cutting parameters on the response variables. The results revealed that cutting speed (61.17%) is only the significant parameter on tool wear. On the other hand, cutting speed (59.42%) was found to be the dominant parameter among controllable parameters on surface roughness followed by feed (24.3%). However, depth of cut (78.8%) only showed significant parameters for material removal rate (MRR). Finally, the relationship between cutting parameters and the performance measures (tool wear, surface roughness and material removal rate) were developed by using multiple regression analysis.