Neural surface roughness models of CNC machined Glass Fibre Reinforced Composites
by S. Alexandrakis, P. Benardos, G-C. Vosniakos, N. Tsouvalis
International Journal of Materials and Product Technology (IJMPT), Vol. 32, No. 2/3, 2008

Abstract: CNC machining of parts from pre-made Glass Fibre Reinforced Composites (GFRCs) blocks started gaining ground. However, wrong cutting conditions result in poor surface quality, delaminations or other damaging effects. In this work, a computational tool is developed to help improve machinability of these parts by accounting for surface quality. Artificial Neural Network models trained with data obtained through Taguchi-style designed experiments predict surface roughness obtained. GFRC blocks made from D.E.R.321 epoxy resin, CHEM.93-1-74, PC12 stabiliser and Woven Roving (500 gr/m² and 800 gr/m²) were CNC machined. Microscopy and image analysis studies enrich the ANN models with machined material macro-structural characteristics.

Online publication date: Fri, 27-Jun-2008

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