EDM has been successfully used in the machining of hard-to-cut material, facilitating and achieving high dimensional accuracy, in complex shapes and geometries. 6000–12,000 ☌, resulting in the melting and/or ablation of material from both the electrode and the workpiece 2, 3. Due to the high electromagnetic energy density, extremely high temperatures are topically developed, i.e. Under specific conditions, i.e., voltage and gap between electrode and workpiece, an intense column of electromagnetic flux is formed, best known as plasma channel, having energy densities in the range of 10 11–10 14 W/m 2. During EDM, a pulse voltage difference is applied between the workpiece and the electrode, both of which have to be immersed into proper dielectric fluid. The fundamental principle of EDM is that material removal is resulted by means of rapid repetitive spark discharges, which occur between a working electrode and the workpiece. Finally, by employing the Response Surface Methodology, educed regression models that correlate the machining parameters with the corresponding results, while for all the aforementioned indexes, ANOVA was performed.Įlectrical Discharge Machining (EDM) is classified as one of the earliest non-conventional machining processes, but it still finds extensive use and application in modern industry as a leading edge machining process in treating hard-to-cut materials 1. Moreover, the developed model that integrates a heat transfer analysis with deformed geometry, allows to estimate the power distribution between the electrode and the workpiece, as well as the Plasma Flushing Efficiency, giving an insight view of the process. The machining performance indexes of Material Removal Rate, Tool Wear Ratio, and Average White Layer Thickness were measured and calculated for different pulse-on currents and pulse-on times. The current paper, presents an experimental study regarding the machining of Titanium Grade2 with EDM, coupled with the development of a simulation model. Electrical Discharge Machining (EDM) is a non-conventional machining process, commonly used in machining of hard-to-cut materials. Titanium alloys, due to their unique properties, are utilized in numerous modern high-end applications.
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