Process Parameters Optimization in Drilling Using Taguchi Method

Drilling is an important machining process in manufacturing. In drilling process hole or through hole can be produced into workpiece. During machining, burr is produced. Burr is some undesirable material left on the workpiece surface after drilling. By controlling some parameters like point angle, drill diameter and spindle speed, the formation of a bar can be reduced. In this work, experimental work has been done in drilling to minimize burr formation. The aim of this research work is to optimize burr formation during the drilling operation of an aluminium bar of size 150 mm * 42 mm * 16 mm using a high-speed steel cutting tool. To obtain the comparative impact of selected parameters on the drilling burr formation analysis of variance (ANOVA) and Taguchi’s L27 orthogonal array has been used. The obtained result shows that the main parameter to optimize the burr height is point angle which gives 94% confidence level and 32.42% burr height.