Adaptive optics for control of the laser welding process

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F12%3A00386129" target="_blank" >RIV/68081731:_____/12:00386129 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Adaptive optics for control of the laser welding process
Original language 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 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
Czech name
—
Czech description
—

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Optics and Measurement 2012. Proceedings of the International Conference
ISBN
978-80-87026-02-1
ISSN
—
e-ISSN
—
Number of pages
6
Pages from-to
93-98
Publisher name
Institute of Plasma Physics
Place of publication
Praha
Event location
Liberec
Event date
Oct 16, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
—

Similar results(10)