The paper presents an investigation on surface quality in terms of surface roughness when micromachining of nanoclay/polyester (PE) and graphene/epoxy nanocomposites. Micro-milling experiments were performed at levels of nano-filler weight fraction, feed rate and cutting speed. Contact stylus was employed to measure surface roughness of the machined surfaces. Experimental results show an improvement of surface quality due to the presence of nano-fillers. Maximum Ra measured on graphene/epoxy surfaces was around half of the maximum Ra of the nanoclay polyester machined surfaces (0.9 μm).
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