切削速度计算器 — 公式

Cutting Speed to Spindle RPM

Cutting speed is the velocity at which the tool edge moves relative to the workpiece surface.

Formula

N = 1000 Vc / (pi D)

where Vc is the desired cutting speed in m/min and D is the workpiece (or cutter) diameter in mm. The factor 1000 converts metres to millimetres. Recommended cutting speeds depend on the tool material and workpiece material combination.

计算示例

Turning a 50 mm diameter steel bar at 100 m/min cutting speed.

  1. N = 1000 x 100 / (pi x 50)
  2. N = 100,000 / 157.08 = 637 RPM