• M.Radhika
• G.Yadagiri
• S.Surappa
• U.Adithya Chakri

Glass Fiber Reinforced Plastic (GFRP) composites applications have been increased nowadays due to its greater mechanical, structural and thermal properties. Drilling is the most extensively used manufacturing process in the fabrication of composite components. It is commonly used in the final stage of manufacturing or assembling of components. In the process of drilling, various undesirable effects occur such as matrix cracking, fiber damage, delamination, hole surface roughness, thermal damage, etc., which reduces the quality of the hole. Delamination is the major damage among all the undesirable effects. The appropriate cutting parameters and drill bit can minimize the delamination and improves the hole quality. In the present work, the influence of three different drill bits and cutting parameters (feed rate and spindle speed) on the hole quality parameters assessed which include delamination and surface roughness. The delamination is measured by the microscopy technique. The surface roughness value of the drilled hole is found by using Talysurf surface roughness tester. The obtained result concludes that for high spindle speeds include the slot drill gives less delamination and surface roughness.

GFRP, Drilling, Delamination, Surface Roughness.

"ANALYSIS OF DELAMINATION AND SURFACE QUALITY IN DRILLING OF GFRP COMPOSITES ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.750-754, June 2019, Available :http://www.jetir.org/papers/JETIR1908A59.pdf

"ANALYSIS OF DELAMINATION AND SURFACE QUALITY IN DRILLING OF GFRP COMPOSITES ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp750-754, June 2019, Available at : http://www.jetir.org/papers/JETIR1908A59.pdf