Název: Study of laser wobbling welding process through the radiation of plasma plume
Autoři: Mrňa, Libor ; Horník, Petr ; Jedlička, Petr ; Pavelka, Jan
Typ dokumentu: Příspěvky z konference
Konference/Akce: Lasers in Manufacturing Conference 2017 (LIM 2017), München (DE), 20170626
Rok: 2017
Jazyk: eng
Abstrakt: During laser welding with wobbling to the vector of the welding speed adds trivial movement of the beam in the shape of a circle or other shapes. Therefore, the laser beam moves with much higher current speeds than during normal welding. The melting of material on the leading edge of the keyhole occurs periodically. This fact is reflected in the character of the radiation of plasma plume over the keyhole. Experiments were conducted in which it was obtained spectrum of plasma plume radiation by using autocorrelation function for different parameters of circular wobbling (circle diameter, frequency) and for different materials. In the spectra are found the higher harmonic frequency of wobbling. The results were also compared with the radiation of the plasma plume during pulsed laser welding where the laser beam also periodically melts the leading edge.
Klíčová slova: laser welding; process monitoring; wobbling
Číslo projektu: LO1212 (CEP), TA04020456 (CEP)
Poskytovatel projektu: GA MŠk, GA TA ČR
Zdrojový dokument: Lasers in Manufacturing Conference 2017. Proceedings

Instituce: Ústav přístrojové techniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0279336

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-373339


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav přístrojové techniky
Konferenční materiály > Příspěvky z konference