Title: Bi-performance optimisation of machining parameters of reinforced PEEK composites using NSGA-II

Authors: Issam Hanafi; Francisco Mata Cabrera; Fouad Dimane; José Tejero Manzanares

Addresses: Ecole Nationale des Sciences Appliquées d'Al Hoceima (ENSAH), Mohammed Premier University, BP 03 Ajdir, Al Hoceima, Morocco ' University Polytechnic School of Mining and Industrial Engineering, University of Castilla-La Mancha, 1 Plaza Manuel Meca, 13400 Almaden, Ciudad Real, Spain ' Ecole Nationale des Sciences Appliquées d'Al Hoceima (ENSAH), Mohammed Premier University, BP 03 Ajdir, Al Hoceima, Morocco ' University Polytechnic School of Mining and Industrial Engineering, University of Castilla-La Mancha, 1 Plaza Manuel Meca, 13400 Almaden, Ciudad Real, Spain

Abstract: Because of their effectiveness and robustness in searching for global solutions, optimisations using evolutionary algorithm (EA) techniques are presently gaining significant attention in various fields. They are reported to be suitable for achieving multiple objective optimisations. This work is dedicated to machining process of PEEK CF30 using TiN coated tools under dry conditions. The influence on machining force and specific cutting pressure is analysed as function of the main operating parameters which include cutting speed, depth of cut and feed rate. The obtained experimental results were used at first to develop statistical models that are based on second order polynomial regression for the considered process characteristics. Then, the non-dominated sorting genetic algorithm (NSGA-II) was used to optimise the processing conditions. A non-dominated solution set that minimise both cutting force and specific pressure was determined.

Keywords: TiN coated tools; titanium nitride; modelling; optimisation; non-dominated sorting genetic algorithms; NSGA-II; PEEK CF30 machining; polyetheretherketone machining; dry machining; machining force; specific cutting pressure; cutting speed; depth of cut; feed rate; modelling.

DOI: 10.1504/IJAUTOC.2015.071146

International Journal of Automotive Composites, 2015 Vol.1 No.4, pp.375 - 396

Received: 17 Nov 2014
Accepted: 19 Feb 2015
Published online: 13 Aug 2015 *

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