23
– Active Chatter Control option (ACC)
Strong milling 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 tool can
sometimes begin to “chatter.” This chatte-
ring 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 break-
age.
To reduce the inclination to chattering,
HEIDENHAIN now offers an effective
antidote with the Active Chatter Control
(ACC) control function. The use of this
control function is particularly advanta-
geous during heavy cutting. ACC makes
substantially higher metal removal rates
possible. This makes it possible 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.
Heavy machining without ACC (figure above) and
with ACC (figure below)
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