Key functions for 5-axis machining
3.1
© Siemens AG All rights reserved. SINUMERIK, Manual, 5-axis machining
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3.1 Introduction
It is within the context of 5-axis programming in particular that the entire CAD/CAM/CNC process
chain has a major role to play in terms of ensuring optimum results on the machine.
The CAD system generates the geometry of the desired workpiece. Based on this geometry file,
the CAM system generates the corresponding machining strategy with the associated technol-
ogy information.
The data format output from the CAM system is generally an APT or CL data file. This is con-
verted into an executable NC code in the post processor.
The upstream post processor is of the utmost importance when it comes to using the capabilities
and performance of SINUMERIK controls to the full.
The post processor should ensure that the higher-order functions of SINUMERIK controls (as
described in this section) are activated in the best possible way. An overview of all the higher-
order SINUMERIK functions is provided in the next few sections.
CAD
(design)
CAM
(NC programming)
PP
(NC programming)
CNC
(machining)
Geometry
Tool path
APT source
NC program Workpiece
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