1PG Scholar, Pune University, NBN Sinhgad School of Engineering, Pune, India
2Asst. Prof., Dept. of Mechanical Engineering, NBN Sinhgad School of Engineering, Ambegaon (Bk.), Pune-041
Online published on 8 May, 2017.
The ability of a grinding wheel to perform is significantly affected by the way in which the wheel is dressed. The four important parameters of blade type multi point diamond dressing operation are, dressing depth of cut, dressing cross feed rate, drag angle of dresser and number of passes. The effect of these parameters is measured in terms of surface of work piece during subsequent grinding operation. In this work, empirical models are developed for surface roughness by considering selected four parameters of dressing as control factors using Taguchi design methodology. The mathematical models in terms of dressing parameters were developed for surface roughness on the basis of experimental results. The model selected for the optimization has been validated by F-test and Chi-square test. In this paper, Taguchi design methodology has been applied to determine the optimum dressing parameters leading to minimum surface roughness using CNC cylindrical grinding machine on EN19 Steel bar. In the present work, experimental results were used to find the analysis of variance (ANOVA) which explains the significance of the parameters on the respo nses and predicted that dressing cross feed rate is most dominating parameters for surface roughness in cylindrical grinding.
CNC cylindrical grinding, Dressing, Taguchi Design, ANOVA, Modeling and Optimization
