Modeling of Material Removal Rate and Surface Roughness Generated during Electro-Discharge Machining
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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-06-01
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| Series: | Machines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-1702/7/2/47 |
| _version_ | 1818872615728578560 |
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| author | Amin Razeghiyadaki Carlo Molardi Didier Talamona Asma Perveen |
| author_facet | Amin Razeghiyadaki Carlo Molardi Didier Talamona Asma Perveen |
| author_sort | Amin Razeghiyadaki |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-19T12:41:38Z |
| format | Article |
| id | doaj.art-b170ad0400db4011ab0d6014c722ec6b |
| institution | Directory Open Access Journal |
| issn | 2075-1702 |
| language | English |
| last_indexed | 2024-12-19T12:41:38Z |
| publishDate | 2019-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Machines |
| spelling | doaj.art-b170ad0400db4011ab0d6014c722ec6b2022-12-21T20:20:57ZengMDPI AGMachines2075-17022019-06-01724710.3390/machines7020047machines7020047Modeling of Material Removal Rate and Surface Roughness Generated during Electro-Discharge MachiningAmin Razeghiyadaki0Carlo Molardi1Didier Talamona2Asma Perveen3Department of Mechanical and Aerospace Engineering, Nazarbayev University, Nur-Sultan 010000, KazakhstanDepartment of Electrical & Computer Engineering, Nazarbayev University, Nur-Sultan 010000, KazakhstanDepartment of Mechanical and Aerospace Engineering, Nazarbayev University, Nur-Sultan 010000, KazakhstanDepartment of Mechanical and Aerospace Engineering, Nazarbayev University, Nur-Sultan 010000, KazakhstanThis 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.https://www.mdpi.com/2075-1702/7/2/47craterEDMheat sourcematerial removal rate (MRR)surface roughness |
| spellingShingle | Amin Razeghiyadaki Carlo Molardi Didier Talamona Asma Perveen Modeling of Material Removal Rate and Surface Roughness Generated during Electro-Discharge Machining Machines crater EDM heat source material removal rate (MRR) surface roughness |
| title | Modeling of Material Removal Rate and Surface Roughness Generated during Electro-Discharge Machining |
| title_full | Modeling of Material Removal Rate and Surface Roughness Generated during Electro-Discharge Machining |
| title_fullStr | Modeling of Material Removal Rate and Surface Roughness Generated during Electro-Discharge Machining |
| title_full_unstemmed | Modeling of Material Removal Rate and Surface Roughness Generated during Electro-Discharge Machining |
| title_short | Modeling of Material Removal Rate and Surface Roughness Generated during Electro-Discharge Machining |
| title_sort | modeling of material removal rate and surface roughness generated during electro discharge machining |
| topic | crater EDM heat source material removal rate (MRR) surface roughness |
| url | https://www.mdpi.com/2075-1702/7/2/47 |
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