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Evaluation of Milling Parameters on Fiberglass to Reduce the Surface Roughness

Ashok Rai, Pradeep Mouria, Vishal Gulati, Puneet Katyal

Surface roughness is recognized as one of the most critical defects that can result from the machining of composites. Particularly, the life of the product is critically affected by the holes created by milling. Thus, in order to extend the applications of fiberglass, accurate milling is essential for removal of the excess material. This work is towards the determination of surface roughness related to milling process that decides the quality of holes. This study predicts the effects of machining parameters like mill tool diameter, feed rate, depth of cut and cutting speed on the quality of the milled holes in the fiberglass sheet. The optimum conditions has been determined with the help of main effects plots using Taguchi Design and ANOVA tables to find out which parameter has affected most for increasing surface roughness. Lastly, confirmation tests have also been carried out to verify the optimum levels of cutting parameters.