Title: Parametric study and optimisation of wire electrical discharge machining of Al-Cu-TiC-Si P/M composite

Authors: Taha Ali El-Taweel

Addresses: Department of Production Engineering and Mechanical Design, Faculty of Engineering, Menoufiya University, Shebin El-Kom, Egypt

Abstract: This paper presents an investigation on the effect and optimisation of machining parameters on the Metal Removal Rate and Surface Roughness (SR) in the Wire Electrical Discharge Machining (WEDM) process of Al-Cu-TiC-Si P/M composite. The settings of machining parameters were determined by using Taguchi experimental design method. The variation of MRR and SR with machining parameters is mathematically modelled by using non-linear regression analysis method. The optimal search for machining parameters for the objective of maximum MRR and minimum SR is performed. Based on experimental confirmation the metal removal rate is increased 1.58 times and SR is decreased by 1.11 times.

Keywords: wire electrical discharge machining; WEDM; wire EDM; powder metallurgy composites; metal removal rate; MRR; surface roughness; Taguchi methods; optimisation; electro-discharge machining; machining parameters; experimental design; composites machining.

DOI: 10.1504/IJMMM.2006.012348

International Journal of Machining and Machinability of Materials, 2006 Vol.1 No.4, pp.380 - 395

Published online: 06 Feb 2007 *

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