Feeds and Speeds Calculator

1) Tool Geometry

Tool Diameter = (mm)
Number of Flutes = (integer)

2) Processing Parameters (see tables below)

Surface Speed = (m/min)
Chip Load = (mm)

3)      

Spindle Speed output(rpm)
XY Feed Rate output(mm/min)
Plunge (Z Feed) Rate output(mm/min)
Stepover output(mm)
Stepdown output(mm)




Spindle speed

n = ${Surface~Speed~(mm/min) \over \pi * Tool~Diameter~(mm)}$ =  
Surface speed
$\pi * $ Tool Diameter
  =   Answer rpm

Feed rate

Feed Rate = Spindle Speed (RPM) * Number of Flutes * Chip Load (mm) = Spindle Speed * Number of flutes * Chip Load = Answer mm/min

Plunge rate

Use a plunge rate of 50% or less of the feed rate. So for a feed rate of ... mm/min, use a plunge rate of ... mm/min or less.

Plunge depth and stepover

Based on a tool diameter of ...", use a stepover of ..." or less.





Surface Speeds METRIC

surface_speed All surface speeds in meters per minute

Chip Cut METRIC

chip_cut

Surface Speeds METRIC

climb_conventional



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