Title: Machinability study in turning of unreinforced (PA6) and reinforced (PA66 GF30) polyamides with Polycrystalline Diamond (PCD) tools

Authors: V.N. Gaitonde, S.R. Karnik, Francisco Mata, J. Paulo Davim

Addresses: Department of Industrial and Production Engineering, B.V.B. College of Engineering and Technology, Hubli 580 031, Karnataka, India. ' Department of Electrical and Electronics Engineering, B.V.B. College of Engineering and Technology, Hubli 580 031, Karnataka, India. ' Polytechnic School of Almaden, University of Castilla-La Mancha, Plaza Manuel Meca, 1, 13412 Almaden, Spain. ' Department of Mechanical Engineering, University of Aveiro, Campus Santiago, 3810-193 Aveiro, Portugal

Abstract: This paper presents the application of Response Surface Methodology (RSM) to study the machinability aspects in turning of unreinforced (PA6) and reinforced (PA66 GF30) polyamides using Polycrystalline Diamond (PCD) tool. The non-linear mathematical models have been developed to study the effects of cutting speed and feed rate on machining force, cutting power and specific cutting force. The analysis reveals that machining force and cutting power increase with feed rate for PA6 and PA66 GF30. On the other hand, specific cutting force decreases with increase in feed rate for PA6, while it is minimal at 0.15 mm/rev for PA66 GF30 polyamides.

Keywords: turning; polyamides; polycrystalline diamond; PCD tooling; machinability; RSM; response surface methodology; ANOVA; analysis of variance; mathematical modelling; cutting speed; feed rate; machining force; cutting power; cutting force.

DOI: 10.1504/IJMPT.2010.029465

International Journal of Materials and Product Technology, 2010 Vol.37 No.1/2, pp.140 - 154

Published online: 30 Nov 2009 *

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