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| Quelle: LasX |
Paper
The laser has inherent advantages over traditional cutting technologies
such as punching and the roller knife whenever cutting geometries
are not straight, or are variable, and whenever the hardness of
the material to be cut would cause heavy wear on tools.
Examples in which paper, foil or labels are already being cut in
series by lasers today, are adhesive labels, variably designed present
cards or prototypes in moderate quantities.
As a rule, because of the nature of the process, a CO2 laser with
high beam quality is used for these. Attaching the laser to a galvanometer-driven
deflector head enables both high flexibility and a high process
speed of more than 2000 mm per second to be achieved. In addition,
the quality of cut is, as a rule, considerably better than with
mechanical singling.
A special control technology also allows cutting on the fly, that
is, the strip material can be processed in-line without interrupting
the speed.
The lasers used are fast modulating, so micro-perforation can be
carried out as well as continuous cutting.
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