HEIDENHAIN 548431-05, User Manual, Page: 335 / 722

Teach-in | Thread and undercut cycles
5
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
335
WP : No. of spindle – Displays which workpiece spindle is used
to execute the cycle (machine-dependent)
Main drive
Opposing spindle for rear-face machining
BW : Angle in the B axis (machine-dependent)
CW
:
Reverse the tool
(machine-dependent)
HC : Shoe brake (machine-dependent)
DF
:
Miscellaneous function
(machine-dependent)
Type of machining for technology database access:
Finishing
All parameters that you enter will be accounted for—even if the
standard table prescribes other values. If the parameters
I
,
K
,
W
and R are not defined, the control determines these parameters
from FP in the standard table.
Further information: "DIN 76 – undercut parameters", Page 685
Cycle run:
1 Approach the workpiece from the
Start point
to the Start point cylinder X1
Alternative:
for the
thread chamfer
2 Machine the thread chamfer , if defined
3 Finish-machine the cylinder up to the beginning of the undercut
4 Pre-machine the undercut, if defined
5 Machine the undercut
6 Finish-machine to the
End point transv. X2
7 Return
Without return: Tool remains at the
End point transv.
With return: Retract and return diagonally to the Start point
8 Move to the Tool change point according to the setting in G14