Programming technology functions (cycles)
8.2 Rotate
Turning
322 Operating Manual, 03/2013, 6FC5398-8CP40-3BA1
Parameter Description Unit
α1, α2 Flank angle 1 or flank angle 2 - (only for grooves 2 and 3)
Asymmetric grooves can be described by separate angles. The angles can be
between 0 and < 90°.
Degrees
FS1...FS4 or R1...R4
Chamfer width (FS1...FS4) or rounding radius (R1...R4) - (only for grooves 2 and
3)
mm
α0 Angle of the incline – (only for groove 3) Degrees
* Unit of feedrate as programmed before the cycle call
8.2.4 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.
Approach/retraction
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.
Procedure
1. The part program or ShopTurn program to be processed has been
created and you are in the editor.
2. Press the "Turning" softkey.
3. Press the "Undercut" softkey.
The "Undercut" input window opens.
4. 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.
- OR
Press the "Undercut form F" softkey.
The "Undercut form F (DIN 509)" input window opens.
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