Tool Offset Peripheral Milling, Face Milling - Siemens Sinumerik 840D sl Programming Manual

7.5.2 3D tool offset peripheral milling, face milling
Circumferential milling
The type of milling used here is implemented by defining a path (guide line) and the
corresponding orientation. In this type of machining, the shape of the tool on the path is not
relevant. Especially the radius at the tool intervention point is decisive.
Note
The function 3D TRC is restricted to cylindrical tools.
Face milling
For this type of 3D milling, you will require the line-by-line description of the 3D paths on the
workpiece surface. The tool shape and dimensions are taken into account in the calculations
– which are normally performed in CAM. The post processor writes to the part program – in
addition to NC blocks – to orientations (for active 5 axis transformation) and the G code for the
required 3D tool offset. This means that the machine operator has the possibility of using
tools that are slightly smaller – deviating from the tool used to calculate the NC paths.
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
7.5 Activate 3D tool offsets (CUT3DC..., CUT3DF...)
Tool offsets
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