Operation Manual

HEIDENHAIN CNC PILOT 640 341
4.8 Milling cycles
Type of machining for technology database access: Milling
Cycle run
1 Activate the C axis and position to spindle angle C at rapid
traverse (only in Teach-in mode)
2 Calculate current infeed
3 Position the tool for the first pass
4 Machine up to the thread end point Z2 at the programmed feed
rate, taking the ramps at the beginning and end of the slot into
account
5 Return on paraxial path and approach for next pass
6 Repeat 4 to 5 until the slot depth is reached
7 Move to the tool change point according to the G14 setting
MFE M at end: M function that is executed at the end of the
machining step.
WP Displays which workpiece spindle is used to process the
cycle (machine-dependent)
 Main drive
 Opposing spindle for rear-face machining