DEVELPOMENT OF ELECTROCHEMICAL MICROMACHINING AND PROCESS PARAMETER OPTIMIZATON FOR MACHINING OF ALUMINIUM
Production Engg.Department, PEC University of Technology, India
ABSTRACT
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”.
