DIN/ISO programming | Contour-based turning cycles
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HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
H: Type of retraction – tool backs off at an angle below 45°
opposite the machining direction and moves to the position I, K
(default: 3)
0: Same time, to I+K
1: First X then Z, to I+K
2: First Z then X, to I+K
3: Retract by safety clear.
4: No retraction motion (tool remains on the end coordinate)
5: Diagonal to start pos.
6: X then Z to start pos.
7: Z then X to start pos.
X: Cutting limit in X (diameter value; default: no cutting limit)
Z: Cutting limit in Z (default: no cutting limit)
D: Omit elements (see figure)
Codes for omitting recesses and undercuts
G call
Function D code
G22
Recess for sealing
ring
512
G22
Recess for guard
ring
1.024
G23 H0
General recess 256
G23 H1
Relief turn 2.048
G25 H4
Undercut type U 32.768
G25 H5
Undercut type E 65.536
G25 H6
Undercut type F 131.072
G25 H7
Undercut type G 262.744
G25 H8
Undercut type H 524.288
G25 H9
Undercut type K 1.048.576
Add the codes if you want to hide several elements
I: Final point that is approached at the end of the cycle (diameter
value)
K: Final point that is approached at the end of the cycle
O: Feed reduc. off for circular elements (default: 0)
0: No
1: Yes
U: Type of cycle – required for generating the contour from the
G80 parameters (default: 0)
0: standard contour (longitudinal or transverse), recessing
contour or ICP contour
1: Linear path without/with return
2: Circular arc CW, without/with return
3: Circular arc CCW, without/with return
4: Chamfer without/with return
5: Rounding arc without/with return
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