Title: Empirical modelling and parametric optimisation of surface roughness of silicon carbide advanced ceramics in surface grinding
Authors: Binu Thomas; Eby David; R. Manu
Addresses: Department of Mechanical Engineering, National Institute of Technology Calicut, Kozhikode 673 601, India ' Department of Mechanical Engineering, National Institute of Technology Calicut, Kozhikode 673 601, India ' Department of Mechanical Engineering, National Institute of Technology Calicut, Kozhikode 673 601, India
Abstract: Advanced ceramics are increasingly utilised in various engineering applications such as aerospace, marine, automobile, etc. Grinding is commonly used for producing parts of high precision and high surface quality from advanced ceramics. But, there are only a few investigations on the effects of process parameters on surface roughness of advanced ceramics in surface grinding. The objective of this work is to model and optimise surface roughness of silicon carbide (SiC) advanced ceramic material during surface grinding. In the present work, a new for surface roughness in surface grinding of SiC advanced ceramic material is proposed. Effectiveness of this model is proved by comparison of the experimental results with the predicted results. Finally, optimisation of surface roughness is done considering machining parameters such as table feed rate, depth of cut and wheel speed using response surface methodology (RSM) in Design Expert software.
Keywords: surface grinding; advanced ceramics; surface roughness; response surface methodology; RSM; Design Expert 7.0; ANOVA; analysis of variance; mathematical modelling; parametric optimisation; silicon carbide; surface quality; machining parameters; table feed rate; depth of cut; wheel speed.
International Journal of Precision Technology, 2015 Vol.5 No.3/4, pp.277 - 293
Received: 02 May 2015
Accepted: 20 Sep 2015
Published online: 23 Dec 2015 *