From molybdenum-wire diameter, cutting speed and workpiece thickness, estimates the actual feed rate, surface roughness Ra and corresponding machining-precision grade for WEDM.
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Cutting speed | v ∝ I/h wire EDM relation | Wire EDM technology |
| Spark gap | 0.01–0.05 mm per side | Wire EDM accuracy |
| Surface roughness | Ra 0.8–1.6 μm finishing | GB/T 1031-2009 |
| Wire wear | Brass wire Ø0.18–0.25 mm | Consumables spec |
| Accuracy grade | ±0.005–0.02 mm, slow-wire better | GB/T 7926 |
| Multi-pass cutting | 3–5 passes improve accuracy | Process practice |
电火花线切割精度计算器,依据钼丝直径、面积切割效率与工件厚度,换算实际进给速度并估算表面粗糙度 Ra,进而判别加工精度等级。