HEIDENHAIN TNC 640 User Manual page 649

Multiple-Axis Machining | Running CAM programs
ADP motion control
This feature must be enabled and adapted by the
machine tool builder.
An insufficient quality of data in NC programs created on CAM
systems frequently causes inferior surface quality of the milled
workpieces. The ADP (Advanced Dynamic Prediction) feature
expands the conventional look-ahead of the permissible maximum
feed rate profile and optimizes the motion control of the feed axes
during milling. This enables clean surfaces with short machining
times to be cut, even with a strongly fluctuating distribution
of points in adjacent tool paths. This significantly reduces or
eliminates the reworking complexity.
These are the most important benefits of ADP:
Symmetrical feed-rate behavior on forward and backward paths
with bidirectional milling
Uniform feed rate curves with adjacent cutter paths
Improved reaction to negative effects (e.g. short, step-like
stages, coarse chord tolerances, heavily rounded block end-
point coordinates) in NC programs generated by CAM system
Precise compliance to dynamic characteristics even in difficult
conditions
HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
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