HEIDENHAIN SW 548328-05 DIN Programming - Manual (Page 280)

280
DIN programming
4.1
7
Cont
our
-based t
u
rn
ing cy
cles
Machining information:
 Transition from turning to recessing: Before the transition from
turning to recessing, the Control retracts the tool by 0.1 mm. Thus
an offset cutting edge is adjusted for the recessing operation,
independent of "offset width B."
 Inside radii and chamfers: Depending on the recessing width and
the radii of rounding arcs, single cuts preventing a "fluid transition"
from recessing to turning are executed before the rounding is
machined. This prevents damage to the tool.
 Edges: Edges are recessed. This prevents residual rings.
Cycle run (where Q=0 or 1)
1
Calculates the areas to be machined and the cutting
segmentation.
2 Approaches workpiece for first pass from starting point, taking the
safety clearance into account.
 Radial recess: First Z, then X direction
 Axial recess: First X, then Z direction
3 Executes the first cut (recessing).
4 Machines perpendicularly to recessing direction (turning).
5
Repeats 3 to 4 until the complete area has been machined.
6
If required, repeats 2 to 5 until all areas have been machined.
7 If Q=0: Finish-machines the contour.