To get a feel for the relationship
between the variables in machining calculations poke
combination of variables and play around with it.
machinist needs to know the relationship of SFPM to Dia and
RPM or Chip Load
to Feed Rate, RPM and Number of Teeth being
Surface Feet Per Minute
(SFPM) = (Pi * Diameter" * RPM) / 12
Cutter Chip Load
(CL) = Feed Rate (Inches Per Minute) /
RPM * Number of Teeth
Inch to Millimeter Converter
.03936" = 1mm 25.4mm = 1"
Fraction to Decimal
Use x / y form for fraction variable..... Hey old timer! Try to
think back to the days when
you could not remember what 11/16 was in decimal form.
young machinists it is a tool to get a feel for the decimal /