Research Article
Study on Breakdown Probability of Multimaterial Electrodes in EDM
Table 5
Processing parameters of multimaterial electrodes for EDM.
| Items | Parameters |
| Workpiece material | Die steel | Multimaterial electrodes | Iron and copper; copper and copper-tungsten; brass and copper | Machining polarity | Normal | Thickness of workpiece (mm) | 4 | Pulse on time, Ton (s) | 12.5 | Pulse interval time, Toff (s) | 7.5 | Breakdown voltage, Ub (V) | 45 | Peak current, Ip (A) | 0.8 | Diameter of cylindrical electrode (mm) | 2 | Machining time, t (s) | 3.0 | Dielectric | Deionized water |
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