Title: A surface roughness analysis in turning of polyamide PA-6 using statistical techniques

Authors: F. Mata, G. Petropoulos, I. Ntziantzias, J. Paulo Davim

Addresses: Polytechnic School of Almaden, University of Castilla-La Mancha, Plaza Manuel Meca, 1, 13412 Almaden, Spain. ' Department of Mechanical and Industrial Engineering, University of Thessaly, Pedion Areos, 383 34 Volos, Greece. ' Department of Mechanical and Industrial Engineering, University of Thessaly, Pedion Areos, 383 34 Volos, Greece. ' Department of Mechanical Engineering, University of Aveiro, Campus Santiago, 3810-193 Aveiro, Portugal

Abstract: This work is aimed at studying the impact of cutting conditions (cutting speed and feed) on surface roughness in turning of Polyamide PA-6, using two different cutting tool materials namely, Polycrystalline Diamond (PCD) and K15 cemented carbide. By applying Response Surface Methodology (RSM) and Analysis of Variance (ANOVA) to the experimental data, predictive models are developed exhibiting excellent correlation and revealing that feed exerts the strongest influence on roughness, whilst cutting speed has a secondary effect. On the other hand the PCD tool tends to provide better finish. These findings permit optimised selection of cutting conditions and tool materials.

Keywords: polymer matrix materials; polyamides; turning; surface roughness; predictive models; design of experiments; DOE; RSM; response surface methodology; cutting speed; feed rate; PCD tooling; cemented carbide tools; surface finish; surface quality.

DOI: 10.1504/IJMPT.2010.029467

International Journal of Materials and Product Technology, 2010 Vol.37 No.1/2, pp.173 - 187

Published online: 30 Nov 2009 *

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