Simulation of Flow Field and Experimental Study on the Electric Discharge Machining of Small Holes in Renewable Dielectrics
Vegetable oil is regarded as a medium that can replace kerosene in electrical discharge machining (EDM) hole processing due to its renewability and environmental friendliness. Meanwhile, numerical simulation serves as an effective means to study the behavior of the gap flow field during EDM processi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-06-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/16/7/767 |
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| author | Ruili Wang Yangjing Zhao Binghui Dong Shuo Sun Na Xiao Wuyi Ming |
| author_facet | Ruili Wang Yangjing Zhao Binghui Dong Shuo Sun Na Xiao Wuyi Ming |
| author_sort | Ruili Wang |
| collection | DOAJ |
| description | Vegetable oil is regarded as a medium that can replace kerosene in electrical discharge machining (EDM) hole processing due to its renewability and environmental friendliness. Meanwhile, numerical simulation serves as an effective means to study the behavior of the gap flow field during EDM processing. Based on this, this study explored the influence of hole size and different vegetable oil dielectrics (sunflower seed oil, canola oil, and soybean oil) on the movement of electro-corrosion residues in the processing gap. The simulation results demonstrate that the viscosity of the oil affects the escape rate of the particles. In holes of 1 mm and 4 mm of size, the escape rate of canola oil at any time period is superior to that of sunflower seed oil and soybean oil. In a 1 mm hole, its average escape rate reached 19.683%, which was 0.24% and 0.19% higher than that of sunflower seed oil and soybean oil, respectively. Subsequently, experiments were conducted in combination with the simulation results to explore the influence of current, pulse width, and pulse interval on hole processing. This further confirmed the application potential of vegetable oil in electrical discharge micro-hole processing and provided theoretical support and experimental basis for optimizing the green manufacturing process. |
| format | Article |
| id | doaj-art-97e71d8c15654424a503c5264141c1bb |
| institution | DOAJ |
| issn | 2072-666X |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-97e71d8c15654424a503c5264141c1bb2025-08-20T03:08:10ZengMDPI AGMicromachines2072-666X2025-06-0116776710.3390/mi16070767Simulation of Flow Field and Experimental Study on the Electric Discharge Machining of Small Holes in Renewable DielectricsRuili Wang0Yangjing Zhao1Binghui Dong2Shuo Sun3Na Xiao4Wuyi Ming5Department of Engineering, Huanghe University of Science and Technology, Zhengzhou 450008, ChinaMechanical and Electrical Engineering Institute, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaMechanical and Electrical Engineering Institute, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaMechanical and Electrical Engineering Institute, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaDepartment of Engineering, Huanghe University of Science and Technology, Zhengzhou 450008, ChinaMechanical and Electrical Engineering Institute, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaVegetable oil is regarded as a medium that can replace kerosene in electrical discharge machining (EDM) hole processing due to its renewability and environmental friendliness. Meanwhile, numerical simulation serves as an effective means to study the behavior of the gap flow field during EDM processing. Based on this, this study explored the influence of hole size and different vegetable oil dielectrics (sunflower seed oil, canola oil, and soybean oil) on the movement of electro-corrosion residues in the processing gap. The simulation results demonstrate that the viscosity of the oil affects the escape rate of the particles. In holes of 1 mm and 4 mm of size, the escape rate of canola oil at any time period is superior to that of sunflower seed oil and soybean oil. In a 1 mm hole, its average escape rate reached 19.683%, which was 0.24% and 0.19% higher than that of sunflower seed oil and soybean oil, respectively. Subsequently, experiments were conducted in combination with the simulation results to explore the influence of current, pulse width, and pulse interval on hole processing. This further confirmed the application potential of vegetable oil in electrical discharge micro-hole processing and provided theoretical support and experimental basis for optimizing the green manufacturing process.https://www.mdpi.com/2072-666X/16/7/767electrical discharge machiningEDM hole machiningrenewable dielectricdiscrete phase model |
| spellingShingle | Ruili Wang Yangjing Zhao Binghui Dong Shuo Sun Na Xiao Wuyi Ming Simulation of Flow Field and Experimental Study on the Electric Discharge Machining of Small Holes in Renewable Dielectrics Micromachines electrical discharge machining EDM hole machining renewable dielectric discrete phase model |
| title | Simulation of Flow Field and Experimental Study on the Electric Discharge Machining of Small Holes in Renewable Dielectrics |
| title_full | Simulation of Flow Field and Experimental Study on the Electric Discharge Machining of Small Holes in Renewable Dielectrics |
| title_fullStr | Simulation of Flow Field and Experimental Study on the Electric Discharge Machining of Small Holes in Renewable Dielectrics |
| title_full_unstemmed | Simulation of Flow Field and Experimental Study on the Electric Discharge Machining of Small Holes in Renewable Dielectrics |
| title_short | Simulation of Flow Field and Experimental Study on the Electric Discharge Machining of Small Holes in Renewable Dielectrics |
| title_sort | simulation of flow field and experimental study on the electric discharge machining of small holes in renewable dielectrics |
| topic | electrical discharge machining EDM hole machining renewable dielectric discrete phase model |
| url | https://www.mdpi.com/2072-666X/16/7/767 |
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