HEIDENHAIN SW 54843x-02 - Manual (Page 164)

164 Cycle programming
4.4 T
u
rn
ing cy
cles
Type of machining for technology database access: Roughing
Cycle run
1 Calculate the proportioning of cuts (infeed)
2 Approach the workpiece from starting point for first pass
3 Plunge-cut at plunging angle A with reduced feed
4 Move at the programmed feed rate to the contour end point Z2,
or to the oblique surface defined by the end angle W
5 The contour is machined depending on the contour smoothing H:
6 Return and approach again for next pass
7 Repeat 3 to 6 until contour end point X2 is reached
8 Return to starting point on paraxial path
9 Move to the tool change point according to the G14 setting
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