Programming technology functions (cycles)
9.2 Rotate
Turning
Operating Manual, 01/2015, 6FC5398-8CP40-5BA2
361
Undercut form E and F (CYCLE940)
Function
You can use the "Undercut form E" or "Undercut form F" cycle to turn form E or F undercuts
in accordance with DIN 509.
1. The tool first moves to the starting point calculated internally in the cycle at rapid traverse.
2. The undercut is made in one cut at the machining feedrate, starting from the flank through
to the cross-feed VX.
3. The tool moves back to the starting point at rapid traverse.
The part program or ShopTurn program to be processed has been cr
e-
ated and you are in the editor.
Press the "Turning" softkey.
Press the "Undercut" softkey.
The "Undercut" input window opens.
Select one of the following undercut cycles via the softkeys:
Press the "Undercut form E" softkey.
The "Undercut form E (DIN 509)" input window opens.
Press the "Undercut form F" softkey.
The "Undercut form F (DIN 509)" input window opens.
Parameters, G code program (undercut, form E)
Parameters, ShopTurn program (undercut, form E)
S / V
Spindle speed or constant cut-
ting rate
rpm
m/min
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