Journal
INTERNATIONAL JOURNAL OF MANUFACTURING MATERIALS AND MECHANICAL ENGINEERING
Volume 4, Issue 4, Pages 49-63Publisher
IGI GLOBAL
DOI: 10.4018/ijmmme.2014100104
Keywords
Aluminum Metal Matrix Composites; ANOVA; Entropy Weight Measurement Method; Radial over cut (ROC); TOPSIS
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The objective of this paper is to find the optimum combination on different machining characteristics during electrical discharge machining process of Al-12% SiC Metal matrix composite. Central composite design (CCD) method is used to investigate the effect of three process parameters such as peak current (Ip), pulse on time (Ton), flushing pressure (Fp) on the four response parameters like Material removal rate (MRR), Tool wear rate (TWR), Radial over cut (ROC) and Surface roughness (SR). The multiple objective problems of machining characteristics are optimized by a combine approach of Technique for order preference by similarity to an ideal solution (TOPSIS) and entropy weight measurement method. The Analysis of Variance (ANOVA) is implemented to identify the statistically significant of the Closeness-coefficient results. Finally confirmation test is conducted to compare the experimental data and the predicted data at its optimum parameter to identify the effectiveness of the proposed method.
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