Abstract—This work is focused on performance comparison of Carbide and HSS drills when drilling a glass fiber reinforced general purpose resin composite. Delamination is a measure of the quality of a drilled hole, which in turn is primarily dependent on the thrust force. The comparison of thrust force and the corresponding delamination produced has been made with reference to drilling by HSS and Carbide tools with the independent variables being cutting tool geometry, drill diameter, material thickness, feed rate, and speed. Results indicate that under all drilling conditions Carbide drill has a better performance as depicted by lower thrust force and lesser delamination. As both the tool materials are widely used in the industries for drilling the composites, this comparative analysis would be helpful in the choice of the tool material when quality hole is the key consideration.

Index Terms—GFRP, Drilling, Thrust, Delamination, Carbide, HSS

Cite: A Ramanjaneya Reddy, K Siva Bhushan Reddy, P Hussain, B Sidda Reddy, and S Sudhakar Babu, "An Experimental Study Using Design of Experiment Method to Compare the Performance of Solid Carbide and HSS Drills in Drilling of GFRP Composite Mater," International Journal of Mechanical Engineering and Robotics Research, Vol. 2, No. 4, pp. 216-221, October 2013.