Abstract
In this study, the role of working fluid in electrical discharge machining (EDM) was investigated based on its electrical conductivity. The function of gas bubble in material removal process was studied by comparing the crater that formed in water discharge with that formed in air discharge. The mechanism of material removal for EDM in water-based working fluid was proposed by analyzing the discharge voltage. Experiments were conducted to learn the influence of discharge parameters and working fluid conductivity on the crater forming process. The detected discharge waveform demonstrated that the effect of electrolytic reaction in the discharge process could be controlled by changing the conductivity of the working fluid. This study shows that water-based working fluid has good application prospects in EDM machining.
| Original language | English |
|---|---|
| Pages (from-to) | 1865-1871 |
| Number of pages | 7 |
| Journal | Materials and Manufacturing Processes |
| Volume | 31 |
| Issue number | 14 |
| DOIs | |
| State | Published - 25 Oct 2016 |
| Externally published | Yes |
Keywords
- Bubble
- Conductivity
- Crater
- Discharge
- EDM
- Electrolytic
- Oxidation
- Water
- Waveform
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