Operation Manual

HEIDENHAIN CNC PILOT 640 193
4.4 Turning cycles
Cycle run
1 Calculate the proportioning of cuts (infeed), taking the workpiece
blank oversize J and the type of cutting lines H into account
 J=0: The cutting geometry is taken into account. This may result
in the use of different infeeds for the longitudinal and transverse
directions.
 J>0: The same infeed is used for both the longitudinal and the
transverse direction.
2 Approach the workpiece from starting point for first pass on
paraxial path
3 Machine the workpiece according to the calculated proportioning
of cuts
4 Return and approach for next pass
5 Repeat 3 to 4 until the defined area has been machined
6 Return to starting point on paraxial path
7 Move to the tool change point according to the G14 setting