Adaptive optics for control of the laser welding process

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Adaptive optics for control of the laser welding process

Popis výsledku v původním jazyce

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 wallsand 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 wasrealized 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

Název v anglickém jazyce

Adaptive optics for control of the laser welding process

Popis výsledku anglicky

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 wallsand 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 wasrealized 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

Druh

D - Stať ve sborníku

CEP obor

JB - Senzory, čidla, měření a regulace

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Optics and Measurement 2012. Proceedings of the International Conference

ISBN

978-80-87026-02-1

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

93-98

Název nakladatele

Institute of Plasma Physics

Místo vydání

Praha

Místo konání akce

Liberec

Datum konání akce

16. 10. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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