Assessment of factors influencing burr height on the machining of particle reinforced hybrid composites

The present work is aimed at analysing the burr height at exit of the holes during drilling of hybrid aluminium matrix composite using tin coated solid carbide twist drills. the exit burr in drilling affects quality of the hole and so,it is necessary to study influence of input variables such as speed,feed,drill diameter and graphite on burr height. for experimentation,design of experiment - full factorial design concept was used. in this research work,a mathematical model has been developed using regression analysis to predict the burr height and analysis of variance (anova) in order to study the main effects of machining parameters on burr height.