DEVELPOMENT OF ELECTROCHEMICAL MICROMACHINING AND PROCESS PARAMETER OPTIMIZATON FOR MACHINING OF ALUMINIUM
Keywords:
Electrochemical Machining, Micro-Machining, Electrolyte, Processing Parameter,Taguchi Method, ANOVA, MRRAbstract
The present paper deals with the analysis of ECMM process at the basic level. This study has demonstrated the ECMM process from
both a theoretical and experimental point of views, based on earlier investigations. The functional aspects of ECMM set-ups and
systems were understood, considering the mechanism of removal as well as the precision of the machining process for machining an
Aluminium Foil using a Copper tool and Nacl electrolyte.Comparative analyses of the processing conditions governing the electrical
and chemical aspects of the ECMM process were performed. The input parameters chosen were: Supply Voltage (V),Supply Current
(Ip),,Pulse Off Time(Toff),Pulse On Time(Ton ).The effect of these parameters on MRR in ECMM were evaluated with the help of
Taguchi method.The maximum material removal rate,i.e.MRR which is .590(mm
3
/min) is obtained at 0.7A Current supply 9V Voltage
supply,4µs Pulse off time and 3µs Pulse on time.The metal removal rate was considered as the quality characteristic with the concept
of "larger-is-better”.
