Research on Stagger Coupling Mode of Pulse Duration and Tool Vibration in Electrochemical Machining
Abstract
:1. Introduction
2. Analysis of the Simulation of a Dynamic PVECM Process
2.1. Traditional Coupling Mode
2.2. Physical Model
- The bubbles are evenly distributed in the liquid phase, and no mass transfer occurs between gas and liquid.
- The cathode and workpiece surfaces are electric equipotential surfaces.
- The current efficiency η = 100%.
2.3. Variation of Electrolyte Pressure and Gas Void Fraction
3. Experimental Procedures
4. Results and Discussion
5. Conclusions
- As the inter-electrode gap narrows, the electrolyte pressure and gas void fraction differ from those as the gap widens. In the pre-position coupling mode, the fluid conditions are better than in the post-position coupling mode.
- In each coupling mode, decreases with increasing feed rate. A higher feed rate corresponds to a better machining localization.
- At a given feed rate, the post-position coupling mode offers a better machining localization than either the pre-position coupling mode or the symmetry coupling mode.
- The best machining localization and highest feed rate are obtained by the pre-position coupling mode, closely followed by the symmetry coupling mode and the post-position coupling mode.
Author Contributions
Funding
Conflicts of Interest
References
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Parameter | Value |
---|---|
Applied voltage (V) | 20 |
Electrolyte conductivity | 16.1 S/m at 30 °C |
Electrolyte inlet pressure (MPa) | 0.6 |
Electrolyte outlet pressure (MPa) | 0.1 |
Initial gap (mm) | 0.1 |
Vibration frequency (Hz) | 10 |
Vibration amplitude (mm) | 0.3 |
Coefficient m | 1.5 |
Conditions | Value |
---|---|
Electrolyte | NaNO3 |
Electrolyte conductivity | 16.1 S/m at 30 °C |
Voltage (V) | 20 |
Electrolyte inlet pressure (MPa) | 0.6 |
Electrolyte outlet pressure (MPa) | 0.1 |
Electrolyte temperature (°C) | 30 ± 1 |
Initial gap (mm) | 0.1 |
Amount of feed (mm) | 1 |
Vibration frequency (Hz) | 10 |
Vibration amplitude (mm) | 0.3 |
Duty cycle | 25% |
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Jiang, X.; Liu, J.; Zhu, D.; Wang, M.; Qu, N. Research on Stagger Coupling Mode of Pulse Duration and Tool Vibration in Electrochemical Machining. Appl. Sci. 2018, 8, 1296. https://doi.org/10.3390/app8081296
Jiang X, Liu J, Zhu D, Wang M, Qu N. Research on Stagger Coupling Mode of Pulse Duration and Tool Vibration in Electrochemical Machining. Applied Sciences. 2018; 8(8):1296. https://doi.org/10.3390/app8081296
Chicago/Turabian StyleJiang, Xiaochen, Jia Liu, Di Zhu, Mingming Wang, and Ningsong Qu. 2018. "Research on Stagger Coupling Mode of Pulse Duration and Tool Vibration in Electrochemical Machining" Applied Sciences 8, no. 8: 1296. https://doi.org/10.3390/app8081296