Abstract
Carbon Fiber Reinforced Polymer (CFRP) composites are popularly used in aerospace industry in lieu of its high strength to weight ratio. This paper that is reported herein is an attempt to use Grey relational analysis (GRA) coupled with Taguchi Technique for the optimization of cutting parameters like cutting speed, feed rate and drill bit type with multiple performance characteristics of delamination factor, surface roughness and circularity. Machining trials involved drilling of 6 mm diameter holes on 8 mm thick CFRP plates was performed according to L27 Taguchi’s orthogonal array technique using the drill material of HSS, TiN and TiAlN. The results of the optimization technique reveals that the delamination factor, surface roughness, circularity can be simultaneous optimized using the GRA coupled with Taguchi Technique.
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