Siemens SINUMERIK 840D Programming Manual page 144

3
Milling Cycles
3.6 Circumferential slot – SLOT2
Function
Cycle SLOT2 is a combined roughing-finishing cycle.
With this cycle you can machine circumferential slots
arranged on a circle.
Sequence of operations
Position reached prior to cycle start:
The starting position can be any position from which
each of the slots can be approached without
collision.
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.
• The circumferential slot is machined in the same
steps as an elongated hole.
• After finishing a circumferential slot, the tool is
withdrawn to the retraction plane and the
transition to the next slot is made, either on a
straight line with G0 or on a circular path at the
feedrate programmed in _FFCP.
• When the last slot has been machined, the tool is
traversed to the end position reached in the
machining plane specified in the display to the
retraction plane with G0 and the cycle is
terminated.
3-144
G0
G2/G3
SINUMERIK 840D/840Di/810D Programming Guide Cycles (PGZ) – 11.02 Edition
3
12.97
G0
G0
G2/G3
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