HEIDENHAIN TNC 620 User Manual page 312

7
7.1 Active Chatter Control (ACC) (option 145)
Application
This function must be enabled and adapted by the
machine manufacturer.
Strong forces come into play during roughing (power milling).
Depending on the tool spindle speed, the resonances in the machine
tool and the chip volume (metal-removal rate during milling),
the machine can sometimes begin to chatter. This chattering
places heavy strain on the machine, and causes ugly marks on the
workpiece surface. The tool, too, is subject to heavy and irregular
wear from chattering. In extreme cases it can result in tool breakage.
In order to reduce a machine's tendency to chatter, HEIDENHAIN
offers an effective control function known as Active Chatter Control
(ACC). The use of this control function is particularly advantageous
during heavy machining. ACC makes substantially higher metal
removal rates possible. Depending on the type of machine, the
metal-removal rate can often be increased by more than 25 %. You
reduce the mechanical load on the machine and increase the life of
your tools at the same time.
ACC was developed especially for roughing and heavy
machining and is particularly effective in this area. You
need to conduct appropriate tests to see whether ACC
will also be advantageous on your machine and with your
tool.
312
Special functions | Active Chatter Control (ACC) (option 145)
HEIDENHAIN | TNC 620 | User's Manual for Setup, Testing and Running NC Programs | 01/2022