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5
08.02
Precondition
Drilling
Thread
center
tapping
© Siemens AG, 2002. All rights reserved
SINUMERIK 840D/810D Operator's Guide ManualTurn (BAM) – 08.02 Edition
5.2 Turning cycles in CYCLE mode
Center tapping (rigid tapping)
This function is for drilling right and left-handed threads at turning
centre. The tool drills in the longitudinal axis at the programmed
spindle speed and feedrate (lead) until the specified final drilling depth
is reached. The spindle rotation is reversed when the thread depth is
reached, and the tool is retracted from the workpiece.
You can use this cycle for rigid tapping.
Z+
X+
Rigid tapping is only possible with a second controlled spindle.
You can specify in the machine data whether you want to use tapping
with floating tapholder or rigid tapping.
Please follow the advice of the machine manufacturer.
Sequence of operations
CYCLE mode is selected.
Select the soft keys "Drilling center" and "Thread tapping".
Turning with Cycles
35
45
5
5-95

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