Special Functions | Active Chatter Control ACC (option 145)
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HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2017
12.3 Active Chatter Control ACC (option 145)
Application
This feature must be enabled and adapted by the
machine tool builder.
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.
To reduce the inclination to chattering, HEIDENHAIN now offers
an effective antidote with ACC (Active Chatter Control). The use
of this control function is particularly advantageous during heavy
cutting. ACC makes substantially higher metal removal rates
possible. This enables you to increase your metal removal rate
by up to 25 % and more, depending on the type of machine. You
reduce the mechanical load on the machine and increase the life of
your tools at the same time.
ACC was developed especially for heavy cutting and is
particularly effective in this area. You need to conduct
appropriate tests to ensure whether ACC is also
advantageous during standard roughing.
When you use the ACC feature, you must enter the
number of tool cuts CUT for the corresponding tool in
the TOOL.T tool table.
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