Mechanical Engineering Faculty Research

Title

Thermal and Fluid Field Simulation of Single Pulse Discharge in Dry EDM

Document Type

Article

Publication Date

Spring 3-2013

Abstract

Dry Wire Electrical Discharge Machining (WEDM) is a newly developed technology that uses gases as dielectric and is in favor of environmental protection. Dry finishing of WEDM offers advantages such as better straightness, lower surface roughness and shorter gap length. Experimental studies show that the machining behaviors in dry conditions are quite different from those in conventional liquid dielectric. In order to explore the processing mechanism of dry WEDM, this paper studies the single pulse discharge mechanism in gas with finite element method. In order to obtain the crater morphology with edge raised, the fluid field was simulated by ANAYS on the basis of thermal analysis of a single pulse generated by the instantaneous discharge in gas.

Publication Title

Procedia CIRP

Volume

6

First Page

427

Last Page

431