Effect of Debris Distribution on Wall Concavity in Deep-Hole EDM
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TLDR
In this paper, the wall concavity phenomenon of the holes using a computational fluid dynamics (CFD) simulation program was analyzed. And the accuracy of the predictions obtained by the numerical calculation was assessed through comparisons with experimental data.Abstract:
In deep-hole electrical discharge machining, the electrode jump height and hence the movement of the machining debris inside the side gap affect the wall concavity of the machined holes. In this study, the dielectric fluid flow and the debris distribution in the machining gap caused by electrode jump is analyzed to understand the wall concavity phenomenon of the holes using a computational fluid dynamics (CFD) simulation program. Fluid flow and debris-fluid interaction under low and high electrode jumps are examined and compared. The accuracy of the predictions obtained by the numerical calculation is assessed through comparisons with experimental data.read more
Citations
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References
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Journal ArticleDOI
Effect of Flushing and Electrode Material on Die Sinking EDM
P.M. Lonardo,A.A.G. Bruzzone +1 more
TL;DR: In this article, an experimental analysis was carried out on a Cr, Mo, V steel for die casting by using both copper and graphite electrodes, and the observed results showed the importance of electrode material, injection flushing and geometry of cutting on removal rate, electrode wear and surface quality.
Journal ArticleDOI
Improved Jet Flushing for EDM
TL;DR: In this paper, a dynamic jet flushing method with moving nozzles that sweep along the outline of the EDM gap is proposed, and a method for calculating the debris distribution in the gap is also proposed.
Journal ArticleDOI
A self-flushing method with spark-erosion machining
T. Masuzawa,C. J. Heuvelman +1 more
TL;DR: In this paper, the authors describe the introduction of an pumping action of the dielectric fluid by means of a special electrode movement, which can decrease the average metal removal rate.
Journal ArticleDOI
Electrode Jump Motion in Linear Motor Equipped Die-Sinking EDM
TL;DR: In this paper, the effects of electrode jump parameters on machining speed and depth were experimentally investigated in linear motor equipped electrical discharge machining, and a new definition named Machining speed break point was introduced, theoretically calculated from a proposed electrode jump and debris exclusion model, and compared with the experimental results.