Abstracto

INFLUENCE OF THE CUTTING PARAMETERS ON THE HOLE DIAMETER ACCURACY AND THE THRUST FORCE IN DRILLING OF ALUMINIUM ALLOYS

A. Sreenivasulu Reddy G. Vijaya kumar C.Thirupathaiah

In this paper, the effect of the mechanical properties of aluminium alloys, cutting speed, feed rate and the point angle on diametric error and thrust force were investigated, using Taguchi method. Al-6061, Al-6351 and Al- 7075 were selected as the work piece materials for experiments. The analysis of variance and signal-to-noise ratio were employed to analyze the effect of drilling parameters. The results of statistical analysis indicated that feed rate and cutting speed minimize significantly both the diametral error and the thrust force.