Siemens SINUMERIK 840D Programming Manual page 137

3
12.97
10.00
The cycle implements the following motion
sequence:
• Travel to the position marked in the figure on the
right at the beginning of the cycle with G0
• Complete machining of a slot is performed in the
following stages:
- Approach to reference plane brought forward
by the safety distance with G0.
- Infeed to the next machining depth as pro-
grammed under VAR1 and at feed value FFD.
- Solid machining of the slot to the final
machining allowance on slot base and slot edge
at feed value FFP1.
Subsequent finishing at feed value FFP2 and
spindle speed SSF along the contour according
to the machining direction programmed under
CDIR.
- The vertical depth infeed of G0/G1 always takes
place at the same position in the machining
plane until the final depth of the slot is reached.
- With reciprocating machining, select the starting
point so that the end point always reaches the
same position in the machining plane.
• Retract tool to retraction plane and move to next
slot with G0.
• At the end of machining the last slot the tool
moves to the retraction plane with G0 and the
cycle ends.
© Siemens AG, 2002. All rights reserved
SINUMERIK 840D/840Di/810D Programming Guide Cycles (PGZ) – 11.02 Edition
3.5 Slots on a circle – SLOT1
G0
G0
3
Milling Cycles
G0
G0
3-137