Optimization Of Process Parameters Of EDM Using ANOVA Method

摘要

The objective of this paper is to investigate the optimum process parameters for a particular work piece-tool material combination on Fuzzy Logic Control based Electrical Discharge Machine. In this experiment, two levels of current, tools material and spark gap are kept as the main variables. The work piece material was taken as S.S.304, and tool material changed at various levels of the performance as copper and brass. The DEF-92 was used as the dielectric fluid. The Design of experiment is used to design the E.D.M experiments. The various tools of D.O.E are used to analyze the final results of the experiment with the help of graphs in this paper. The analysis is being done with the help of Minitab-15 software. The analysis of variance (ANOVA) is also performed to indentify the statistical significance of parameters. The result of the experiments are the optimimum values of MRR (material removal rate), TWR (tool wear ratio), and surface finish with the help of ANOVA. The conclusions arrived are discussed at the end