Optimization of Machining Parameters using Taguchi Method for Surface Roughness

For the present work,an experimental investigation is made on the effect of spindle speed,feed rate and wt% of alumina particle in reducing surface roughness during drilling of al6063/al2o3/gr hybrid composite. tin coated solid carbide drill bit of 6 mm diameter is used for drilling the composite. taguchi's experimental design concept is used for optimizing the design parameters with three levels for better surface finish. the experimental outcomes and microstructure of machined surface reveal that the drilled samples at lowest feed rate shows better performance on surface roughness. the wt% of alumina also has its influence on minimizing surface roughness followed by spindle speed while drilling the fabricated samples.