Optimization of Machining Parameters in Drilling of GFRP(Glass/Vinyl Ester) Composites for Reduction of Delamination Factor

The work reported on GFRP composites was mainly focused on evaluation of favorable machining environment during machining. Moreover, a number of approaches, namely optimization of the operating variables, appropriate selection of drill point geometry and development of special methods for making holes had been implemented. Motivated by the literature reports on GFRP composites, in this research work, the author proposes to use gray integrated with Taguchi to evaluate the optimal parametric combination in the drilling of GFRP composites. Furthermore, in this work, the drilling parameters are taken as spindle speed, feed and drill diameter, whereas machining evaluation characteristics are thrust, torque, delamination (both at entry and exit) and surface roughness.