HEIDENHAIN CNC PILOT 640 User Manual page 89

smart.Turn units | Units – Roughing
Cycle form:
I, K: O-size X and Z
P: Maximum infeed
E: Plunging behavior
E = 0: Descending contours are not machined
E > 0: Plunging feed rate for descending contour elements.
Descending contour elements are machined
No input: The plunging feed rate is reduced during machining
of descending contour elements by up to 50 %. Descending
contour elements are machined
SX, SZ: Cutting limit in X and Z (default: no cutting limit;
diameter value = SX)
A: Start angle (reference: Z axis; default: orthogonal to Z axis)
W: Depart.angle (reference: Z axis; default: parallel to Z axis)
Q: Kind of liber. at end of cycle
0: Back to beg., X before Z
1: Before finished contour
2: Retract by safety clear.
H: Contour smoothing
0: With each cut (within the infeed range)
1: With the last cut (entire contour) – retract at an angle
below 45°
2: No smoothing – retract at an angle below 45°
D: Omit elements (see figure)
U: Cut line on vertical element
0: No (uniform cutting segmentation)
1: Yes (irregular cutting segmentation if applicable)
O: Hide undercutting
0: No
1: Yes
Further forms:
Further information: "smart.Turn unit", Page 78
Access to the technology database:
Machining operation: Roughing
Affected parameters: F, S, E, P
HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
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