About: Adaptive optics for control of the laser welding process

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The laser head with f xed focus optics is commonly used for the deep penetration laser welding. In such case the geometry and position of the beam waist are def ned by the focusing lens. If the laser beam incident on the focusing lens is not well collimated but divergent and its divergence can be varied by proper adaptive optical elements, then also the geometry and position of the focus will be changeable. In this way it is possible to affect the energy coupling from the laser beam to the keyhole walls and thus to control the geometry and quality of the weld. In this paper we present a theoretical and numerical study of the beam shaping by adaptive optics and its inf uence on the weld quality. For the CO2 laser welding machine the adaptive optics was realized by a deformable mirror and its effect was tested also experimentally. For the solid-state laser welding machine we designed a laser head with changeable distance between the optical f ber and the collimating lens and we simulated its performance. The laser head with f xed focus optics is commonly used for the deep penetration laser welding. In such case the geometry and position of the beam waist are def ned by the focusing lens. If the laser beam incident on the focusing lens is not well collimated but divergent and its divergence can be varied by proper adaptive optical elements, then also the geometry and position of the focus will be changeable. In this way it is possible to affect the energy coupling from the laser beam to the keyhole walls and thus to control the geometry and quality of the weld. In this paper we present a theoretical and numerical study of the beam shaping by adaptive optics and its inf uence on the weld quality. For the CO2 laser welding machine the adaptive optics was realized by a deformable mirror and its effect was tested also experimentally. For the solid-state laser welding machine we designed a laser head with changeable distance between the optical f ber and the collimating lens and we simulated its performance. (en)
Title	Adaptive optics for control of the laser welding process Adaptive optics for control of the laser welding process (en)
skos:prefLabel	Adaptive optics for control of the laser welding process Adaptive optics for control of the laser welding process (en)
skos:notation	RIV/68081731:_____/12:00386129!RIV13-AV0-68081731
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(2A-3TP1/113), P(ED0017/01/01)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Šarbort, Martin Mrňa, Libor Jedlička, Petr Řeřucha, Šimon
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav přístrojové techniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	121055
http://linked.open...ai/riv/idVysledku	RIV/68081731:_____/12:00386129
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	laser welding beam shaping; adaptive optics,; power optics; beam shaping (en)
http://linked.open.../riv/klicoveSlovo	beam shaping laser welding beam shaping power optics adaptive optics
http://linked.open...ontrolniKodProRIV	[21CA036D8A09]
http://linked.open...v/mistoKonaniAkce	Liberec
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	Optics and Measurement 2012. Proceedings of the International Conference
http://linked.open...in/vavai/riv/obor	JB
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	APPLICATION LABORATORIES OF ADVANCED MICROTECHNOLOGIES AND NANOTECHNOLOGIES *Investigetion of dynamics of the laser welding process and its control
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Šarbort, Martin Řeřucha, Šimon Jedlička, Petr Mrňa, Libor
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2012-10-16 (xsd:date)
number of pages	6 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Institute of Plasma Physics
https://schema.org/isbn	978-80-87026-02-1

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