Plasma bursts in deep penetration laser welding

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F14%3A00431529" target="_blank" >RIV/68081731:_____/14:00431529 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Plasma bursts in deep penetration laser welding
Original language description
We present an experimental study of the deep penetration laser welding process which aims to analyze the plasma plume oscillations on a short time scale. Using the high-speed camera we show that the plasma comes out of the keyhole in the form of short bursts rather than the continuous flow. We detect these bursts as the short-time intensity oscillations of light emissions coming from the plasma plume. We determine the period of bursts using the statistical signal processing methods and the short-time frequency analysis. Finally, we compare the characteristics of plasma bursts and the geometry of resulting welds carried out on a 2kW Yb:YAG laser welding machine for the steel workpiece and various welding parameters settings.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Physics Procedia. 8th International Conference on Laser Assisted Net Shape Engineering (LANE 2014)
ISBN
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ISSN
1875-3892
e-ISSN
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Number of pages
7
Pages from-to
1-1436
Publisher name
Elsevier
Place of publication
Amsterdam
Event location
Fürth
Event date
Sep 8, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000396762900138

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