Circumferential Milling - Siemens SINUMERIK 840D sl Function Manual

W5: 3D tool radius compensation

19.2 Circumferential milling

19.2 Circumferential milling
Circumferential milling
The variant of circumferential milling used here is implemented through the definition of a
path (directrix) and the associated orientation. In this machining mode, the tool shape is
irrelevant on the path and at the outside corners. The only decisive factor is the radius at the
tool contact point.
Figure 19-3
Insertion depth (ISD)
Program command ISD (insertion depth) is used to program the tool insertion depth for
circumferential milling operations. This makes it possible to change the position of the
machining point on the outer surface of the tool.
ISD defines the distance between cutter tip FS and cutter construction point FH. Point FH is
obtained by projecting the programmed machining point onto the tool axis. ISD is evaluated
only when 3D TRC is active.
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Circumferential milling
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Special Functions