This study is made to find out the most dominating factor among the controllable parameters in the end milling
process. The experiments were performed on aluminium 6061 in the CNC end milling machine. The controllable factors
considered are feed rate, depth of cut, cutting speed. The response variables selected are surface finish and material removal
rate. Taguchi method is used for optimization with the help of minitab software. Additionally ANOVA is also applied to find out
the most contributing factor