IMPIANTO DI SCRIBING LASER PER IL TRATTAMENTO SUPERFICIALE DI LAMIERINI MAGNETICI CON SPOT A SEZIONE ELLITTICA

A laser scribing installation for the treatment of grain oriented magnetic sheets, as strip in longitudinal movement, comprising a laser generator for a laser beam, a cylindrical telescopic optical group with varying focal distance for the formation of a laser beam with elliptic section having varyi...

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Bibliographische Detailangaben
Hauptverfasser: BAISTROCCHI, MAURIZIO, MARIOTTI, FERRUCCIO, BAISTROCCHI, MATTEO, SAVANT-AIRA, GIUSEPPE, PENASA, MAURO
Format: Patent
Sprache:ita
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Zusammenfassung:A laser scribing installation for the treatment of grain oriented magnetic sheets, as strip in longitudinal movement, comprising a laser generator for a laser beam, a cylindrical telescopic optical group with varying focal distance for the formation of a laser beam with elliptic section having varying ellipticity as function of the focal distances and a rotating mirror scanner for scanning the laser beam according to a pre-defined angle. The scribing installation further comprises a parabolic reflector extended transversally to the strip for receiving the scanned laser beam and focusing the beam on the strip, as a greatly lengthened elliptic spot, along a treatment path, and wherein the telescopic group is adjustable for modifying the length of one of the axes in the elliptic section of the laser beam incident on the strip.