Experimental Investigation of the Effect of Deionized Water on Surface Roughness of Near Dry Electro Discharge Machining of AISI D2 Steel
الموضوعات :
Mojtaba Taghizadeh
1
(Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran)
Sayed Ali Mosavi
2
(Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran)
الکلمات المفتاحية: Surface roughness, Electro discharge machining, Deionized water,
ملخص المقالة :
The electro discharge machining (EDM), one of the methods used in the machining industry and a non-traditional manufacturing method, the electro erosion process does not depend on the hardness of material and offers a way to process materials of very complex geometry with very fine and high precision by using cheap electrode materials, which make it a preferred method. In this study, effect of wet and near dry EDM has been investigated. Design of the experiment was chosen as full-factorial. Experimental data has been statistically analyzed and then appropriate model was extracted. The experimental results show that surface roughness decreases by increase of peak current and also pulse on-time; it should be mentioned that effect of peak current on surface roughness is greater than pulse on-time. Also by using near dry machining (NDM), surface roughness decreased about 1µm and approximately 15 percent. These indicate the good performance of NDM.
