EFFECT OF DIFFERENT ELECTRODE SHAPE VARIATION ON SURFACE ROUGHNESS OF MILD STEEL DURING EDM

EDM machining process that removes metals by electric spark erosion is widely used in automotive and aerospace industries. Such industries demand parts that follow very stringent tolerances for dimensions and topology. Many research involving state-of-the-art methods (numerical, computational, or ex...

Full description

Saved in:
Bibliographic Details
Published in:Acta Technica Corvininesis 2015-04, Vol.8 (2), p.105
Main Authors: Patwari, Md Anayet U, Chowdhury, N A, Arif, M D, Chowdhury, Md S I
Format: Article
Language:English
Subjects:
Computer terminals
Copper
Electrodes
Experiments
Mathematical models
Sliding friction
Software
Steel
Studies
Surface roughness
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:EDM machining process that removes metals by electric spark erosion is widely used in automotive and aerospace industries. Such industries demand parts that follow very stringent tolerances for dimensions and topology. Many research involving state-of-the-art methods (numerical, computational, or experimental etc.) have been carried out to predict and compare surface roughness variation. This research have been conducted to compare the variation of surface roughness produced in EDM of mild steel specimens using two different type of electrode shape of circular and rectangular copper electrode. Machining was performed on a CNC JS EDM machine, commonly used for industrial production of dies and molds. Three machining parameters: Pulse on (Ton), Pulse off(Toff), and Gap Voltage (V) were used to investigate the effect of process parameter on surface roughness for two different shape electrodes. Surface roughness values (Ra) were measured using surface Profilometer and a novel Digital Image Processing (DIP) technique, previously developed by the authors. The surface roughness produced in both the cases was then compared and it was observed that better surface finish was attained in the case of the round electrode.
ISSN:2067-3809