Undercut Form E And F (Cycle940) - Siemens sinumerik 840D sl Operating Manual

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Programming technology functions (cycles)

FS1...FS4 or R1...R4

Undercut form E and F (CYCLE940)

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

3. The tool moves back to the starting point at rapid traverse.

Chamfer width (FS1...FS4) or rounding radius (R1...R4) - (only for grooves 2 and

Angle of the incline – (only for groove 3)

through to the cross-feed VX.

The part program or ShopTurn program to be processed has been

created 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.

Operating Manual, 07/2010, 6FC5398-8CP40-0BA0

Sinumerik 828d