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Analysis of spark profiles during EDM process
Published in Marcel Dekker Inc.
1997
Volume: 1
   
Issue: 2
Pages: 195 - 217
Abstract
A fundamental study of electro discharge machining (EDM) based on the physics of an arc and heat transfer theory has been carried out. The field equations for electric potential and temperature in the spark region are simultaneously solved by employing the finite element method. Using the criterion of constant current at any cross section of a spark, the arc radii at different cross sections are corrected until convergence. The final spark shape obtained is noncylindrical, and has different radii at different cross sections. Also, the percent of heat input absorbed by cathode, anode, and dielectric has been calculated. The computed relative electrode wear has been compared with experimental results.
About the journal
JournalMachining Science and Technology
PublisherMarcel Dekker Inc.
ISSN10910344
Open AccessNo
Concepts (11)
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    Anodes
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    Cathodes
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    Convergence of numerical methods
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    Dielectric properties of solids
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    ELECTRIC ARCS
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    Electric currents
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    Electric sparks
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    Finite element method
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    Heat transfer
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    ELECTRODISCHARGE MACHINING (EDM)
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    Machining