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Enter Data for Calculations Below
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End Mill Diameter*
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Number of Cutting Edges*
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Radial Width of Cut*
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To complete calculations, enter known data into
the empty boxes on the left hand side below.
All mandatory fields for calculations are indicated by (*). All calculations are based on industry
formulas and are intended to provide theoretical values. Actual results could vary and SGS Tool
Company assumes no responsibility. |
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Surface Meters per Minute
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Solution
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Revolutions per
Minute*
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Constant
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End Mill Diameter
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Surface
Meters per Minute
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0.00314
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SMM
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Revolutions per Minute
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Solution
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Surface Meters per
Minute
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Constant
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End Mill
Diameter
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Revolutions per Minute
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318.057
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RPM
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Millimeters per Minute
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Solution
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Millimeters per
Tooth (Chipload)
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Revolutions per Minute
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Cutting Edges
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Millimeters
per Minute
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mmPM
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Millimeters per Tooth (Chipload)
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Solution
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Millimeters per
Minute*
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Revolutions per Minute
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Cutting Edges
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Millimeters
per Tooth (Chipload)
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mmPT
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Millimeters per Revolution
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Solution
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Millimeters per
Minute
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Revolutions per Minute
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Millimeters
per Revolution
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mmPR
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Millimeters per Tooth (Chipload) to Obtain Theoretical
Surface Finish
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Solution
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Desired Surface
Finish Ra (micrometers)
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End Mill
Diameter
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Millimeters per Tooth (Chipload)
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mmPT
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The actual finish is usually rougher than
theoretical calculation.
Other factors
not calculated help to ultimatley determine finish.
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Approximated Parameter
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Radial Chip Thinning Feed Calculator
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Solution
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Whenever the radial width is less than half the tool diameter
(as in Rw2) the chip thickness is less than the feed per tooth and additional
feed is possible using the chip thinning calculation.
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Millimeters
per Tooth with Thinning
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mmPT
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This new Inches per Tooth has
been optimized for the Depth of Cut
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Optimized
Millimeters per Minute
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mmPM
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This is the new Feddrate using
the optimized Inches per Tooth above
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Programmed Feedrate for Interpolating a Bore
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Solution
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When moving in a circular motion,
the actual feed rate at the outside diameter differes from the programmed
feed rate. Use the feed rate below
when boring out a large bore, the centerline feed rate is calculated and
inserted into program to compensate for the motion.
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Diameter of Bore
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mmPM at Diameter
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End Mill Diameter
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Millimeters
per Minute at Centerline
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mm
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mmPM
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Programmed Feedrate for Interpolating a Boss
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Solution
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When moving in a circular motion,
the actual feed rate at the outside diameter differes from the programmed
feed rate. Use the feed rate below
when boring out a large bore, the centerline feed rate is calculated and
inserted into program to compensate for the motion.
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Diameter of Boss
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mmPM at Diameter
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End Mill Diameter
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Millimeters per Minute at Centerline
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mm
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mmPM
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