Advances in Production Engineering & Management
Volume 8 | Number 1 | March 2013 | pp 41–51
http://dx.doi.org/10.14743/apem2013.1.152
Study of ECG process while machining Al2O3/Al – IPC using grey-Taguchi methodology
Bose, G.K.; Mitra, S.
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A B S T R A C T
The present paper attempts to optimize machining parameters of electrochemical
grinding (ECG) while machining alumina-aluminum interpenetrating
phase composites by Grey-Taguchi methodology. Control parameters like
electrolyte concentration, voltage, depth of cut and electrolyte flow rate have
been considered to ensure two conflicting responses – higher material removal
rate and lower surface roughness simultaneously by a single parametric
combination. The L9 orthogonal array design is followed for the purpose of
experimentation. The well-known S/N ratio analysis is performed along with
ANOVA to establish the prominent variables that govern the responses separately.
Finally Grey Relational Analysis is performed to optimize multiple performances
in which different levels combinations of the factors are ranked
based on grey relational grade. Surface roughness is given more importance
than the MRR considering basic objective of the process. The analysis reveals
that substantial improvement in machining performance takes place following
this technique. The experimental investigation approach for evaluating the
optimum ECG parametric combination during machining of composites materials
can act as useful and an efficient guideline for manufacturing of products
using such material. The study highlights the effects of different process variables
on multiple performances for complex process like ECG.
A R T I C L E I N F O
Keywords • Electrochemical grinding, Aluminum interpenetrating phase, Composites, Taguchi, Analysis of variance, Grey relational analysis
Corresponding author • Bose, G.K.
Published on-line • 29 March 2013
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