Next Article in Journal
Reduced Order Controller Design for Symmetric, Non-Symmetric and Unstable Systems Using Extended Cross-Gramian
Previous Article in Journal
Vibration-Based Experimental Identification of the Elastic Moduli Using Plate Specimens of the Olive Tree
Open AccessArticle

Modeling of Material Removal Rate and Surface Roughness Generated during Electro-Discharge Machining

1
Department of Mechanical and Aerospace Engineering, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
2
Department of Electrical & Computer Engineering, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
*
Author to whom correspondence should be addressed.
Machines 2019, 7(2), 47; https://doi.org/10.3390/machines7020047
Received: 4 May 2019 / Revised: 28 May 2019 / Accepted: 5 June 2019 / Published: 20 June 2019
This study reports on the numerical model development for the prediction of the material removal rate and surface roughness generated during electrical discharge machining (EDM). A simplified 2D numerical heat conduction equation along with additional assumptions, such as heat effect from previously generated crater on a subsequent crater and instantaneous evaporation of the workpiece, are considered. For the material removal rate, an axisymmetric rectangular domain was utilized, while for the surface roughness, a rectangular domain where every discharge resides at the end of previous crater was considered. Simulated results obtained by solving the heat equation based on a finite element scheme suggested that results are more realistic by considering instantaneous evaporation of the material from the workpiece and the effect of residual heat generated from each spark. Good agreement between our model and previously published data validated the newly proposed models and demonstrate that instantaneous evaporation, as well as residual heat, provide more realistic predictions of the EDM process. View Full-Text
Keywords: crater; EDM; heat source; material removal rate (MRR); surface roughness crater; EDM; heat source; material removal rate (MRR); surface roughness
Show Figures

Figure 1

MDPI and ACS Style

Razeghiyadaki, A.; Molardi, C.; Talamona, D.; Perveen, A. Modeling of Material Removal Rate and Surface Roughness Generated during Electro-Discharge Machining. Machines 2019, 7, 47.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop