Influence of Machining Parameters on Delamination in Drilling of GFRP-armour Steel Sandwich Composites

Abstract

Glass fiber reinforced composite materials are used in variety of engineering applications due to their important properties. Armour steel - GFRP composites are used in application areas such as military vehicles, tanks, automobile etc. These composites provide strength with corrosion resistance. Drilling of these composite materials are very much important for the industry. During drilling, due to the use of glass fibers reinforcement delamination occurs. Reduction of delamination is important for the manufacturers. This paper investigates a study on cutting parameters on the delamination in drilling of an armour steel Glass fiber reinforced sandwich composites. Armour steel is used as a sandwich, which is fixed between the two glass fiber reinforced composite plates. The influence of cutting parameters on delamination in drilling is investigated in detail. From the analysis of the results, it has been known that the feed rate is the highly influential parameter which affects the delamination in drilling of sandwich composites. The results are analysed through graphs and presented in detail.