Operation Manual

HEIDENHAIN CNC PILOT 640 255
4.5 Recessing cycles
Type of machining for technology database access: Recess turning
Cycle run
1 Calculate the proportioning of cuts
2 Approach the workpiece from starting point for first pass
3 Execute the first cut (recessing)
4 Machine perpendicularly to recessing direction (turning)
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
T Turret pocket number
ID Tool ID number
S Spindle speed/cutting speed
F Feed per revolution
G47 Safety clearance (siehe Seite 140)
MT M after T: M function that is executed after the tool call T.
MFS M at beginning: M function that is executed at the
beginning of the machining step.
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