MULTI RESPONSE OPTIMIZATION OF PROCESS PARAMETERS FOR MACHINING TITANIUM WITH EDM
Journal Title: International Journal of Management, IT and Engineering - Year 2017, Vol 7, Issue 8
Abstract
Electrical Discharge Machine (EDM) is the one nonconventional machining process which is used widely in tooling sector. In EDM, it is necessary to optimize the process parameters like a pulse on time, pulse off- time, discharge current, voltage, for maximization of Material Removal Rate (MRR) and to minimize the tool wear rate (TWR). In this paper, parameter optimization of the electrical discharge machining process to Ti–6Al–4V alloy considering multiple performance characteristics. As per Taguchi L16 design, sixteen experiments have been conducted at different levels of current, T-on, T-off and Voltage. Experimental results of surface roughness, tool wear rate, and metal removal rate were analyzed with Responses Surface Methodology. Interaction effect of process parameters on the responses has been discussed. Multi responses optimization technique was used to optimize process parameters for minimum surface roughness and tool wear rate and maximum metal removal rate. The results were verified through a confirmation experiment. The validation experiments show a reduced electrode wear ratio of 12%, the surface roughness of 19% and improved material removal rate of 10%).
Authors and Affiliations
M. SrinivasaRao,Ch. V. S. Parameswara Rao And SN MalleswaraRao Singu
Keywords
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