EDM ASSISTED BY MAGNETIC FIELD FOR ARMOURED STEEL
El-Taweel, T., El-Desouky, A., Farouk, W. (2011). EDM ASSISTED BY MAGNETIC FIELD FOR ARMOURED STEEL. EKB Journal Management System, 34(1), 43-55. doi: 10.21608/erjm.2020.67256
T. A. El-Taweel; A. R. El-Desouky; W. M. Farouk. "EDM ASSISTED BY MAGNETIC FIELD FOR ARMOURED STEEL". EKB Journal Management System, 34, 1, 2011, 43-55. doi: 10.21608/erjm.2020.67256
El-Taweel, T., El-Desouky, A., Farouk, W. (2011). 'EDM ASSISTED BY MAGNETIC FIELD FOR ARMOURED STEEL', EKB Journal Management System, 34(1), pp. 43-55. doi: 10.21608/erjm.2020.67256
El-Taweel, T., El-Desouky, A., Farouk, W. EDM ASSISTED BY MAGNETIC FIELD FOR ARMOURED STEEL. EKB Journal Management System, 2011; 34(1): 43-55. doi: 10.21608/erjm.2020.67256

EDM ASSISTED BY MAGNETIC FIELD FOR ARMOURED STEEL

ERJ. Engineering Research Journal
Article 6, Volume 34, Issue 1, January 2011, Page 43-55  XML PDF (878.61 K)
Document Type: Original Article
DOI: 10.21608/erjm.2020.67256
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Authors
T. A. El-Taweel1; A. R. El-Desouky1; W. M. Farouk2
1Mechanical Design and Production Engineering Department Faculty of Engineering, Minoufiya University, Shebin El-Kom, Egypt
2Mechanical Engineering Department, Faculty of Engineering, Helwan University, Helwan, Egypt
Abstract
The present paper presents a study on the performance of electrical discharge machining (EDM) assisted by magnetic field for armoured steel (HV500). Response surface methodology (RSM) has been utilized to model, analyze and determine the optimal parameters setting in the EDM process assisted by magnetic field. The process performance criteria such as; material removal rate (MRR), tool wear rate (TWR), were evaluated. Peak current, magnetic flux density, duty factor, and dielectric fluid pressure have been considered the main factors affecting EDM assisted by magnetic field performance. RSM was employed to develop the experimental models. The EDM process assisted by magnetic field process has proved its adequacy to machine armoured steel alloy under acceptable metal removal rate and minimum tool wear rate. The metal removal rate generally increases with the increase of the magnetic flux density and peak current value. The effect of duty factor was limited and dielectric fluid pressure has a moderate effect.  Further, the minimum tool wear rate has been obtained at the parametric combination of higher magnetic flux density and higher duty factor when machined by EDM assisted by magnetic field with copper electrodes. It has also been clarified that the effect of magnetic flux density was limited on metal removal rate with graphite electrodes. It has also been found that the minimum tool wear rate was obtained at the parametric combination of higher magnetic flux density, higher peak current and lower duty factor, when machined by EDM assisted by magnetic field, with graphite electrodes.
Keywords
EDM; Armoured Steel Alloy; Material Removal Rate (MRR); Tool Wear Rate (TWR); Magnetic Flux Density; Response Surface Methodology (RSM)
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