Formula: n = (1000 × Vc) / (π × D)
m/min
mm
Cutting speed presets by material
| Material | Vc HSS, m/min | Vc Carbide, m/min |
|---|---|---|
| Steel 45 / AISI 1045 | 25–35 | 80–120 |
| Stainless 304 / AISI 304 | 15–25 | 60–90 |
| Aluminium alloys | 100–200 | 300–500 |
| Cast iron | 20–30 | 80–130 |
| Brass / Bronze | 60–120 | 150–400 |
| Titanium alloys | 10–20 | 40–80 |
FAQ
RPM = (1000 × cutting speed in m/min) / (π × diameter in mm).
n = (1000 × 120) / (3.14159 × 12) = 3183 RPM.
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