Mathematical and numerical modeling of the effect of input-parameters on the flushing efficiency of plasma channel in EDM process
International Journal of Machine Tools and Manufacture
79 - 87
Item Usage Stats
MetadataShow full item record
In the present study, the temperature distribution on the surface of workpiece and tool during a single discharge in the electrical discharge machining process has been simulated using ABAQUS code finite element software. The temperature dependency of material properties and the expanding of plasma channel radius with time have been employed in the simulation stage. The profile of temperature distribution has been utilized to calculate the dimensions of discharge crater. Based on the results of FEM and the experimental observations, a numerical analysis has been developed assessing the contribution of input-parameters on the efficiency of plasma channel in removing the molten material from molten puddles on the surfaces of workpiece and tool at the end of each discharge. The results show that the increase in the pulse current and pulse on-time have converse effects on the plasma flushing efficiency, as it increases by the prior one and decreases by the latter one. Later, the introduced formulas for plasma flushing efficiency based on regression model were utilized to predict the cardinal parameter of recast layer thickness on the electrodes which demands expensive empirical tests to be obtained. © 2012 Elsevier Ltd. All rights reserved.
KeywordsElectrical discharge machining
Plasma flushing efficiency
Recast layer thickness
Electric discharge machining
Finite element method
Electrical discharge machining
Electrical discharge machining process
Finite element software
Plasma channel radius
Published Version (Please cite this version)http://dx.doi.org/10.1016/j.ijmachtools.2012.10.004
Showing items related by title, author, creator and subject.
Oliaei, S.N.B.; Özdemir, C.; Karpat, Y. (Inderscience Enterprises Ltd., 2014)Micro electro discharge machining (μ -EDM) process can be used to fabricate micro-milling tools of different geometries from tungsten carbide (WC) and polycrystalline diamond (PCD). The non-contact nature of EDM process ...
Oliaei, S. N. B.; Karpat, Y. (Elsevier B.V., 2016)Fabrication of micro components made from difficult-to-cut materials require the use of micro cutting tools which can withstand the harsh conditions during machining. Polycrystalline diamond micro tools, produced using ...
Zero-free-parameter modeling approach to predict the voltage of batteries of different chemistries and supercapacitors under arbitrary load Özdemir, E.; Uzundal, C. B.; Ulgut, B. (Electrochemical Society, Inc., 2017)Performance modeling of electrochemical energy storage systems is gathering increasingly higher attention in recent years. With the ever increasing power demand of mobile applications, predicting voltage behavior under ...