Autocorrelation analysis of plasma plume light emissions in deep penetration laser welding of steel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F17%3A00468428" target="_blank" >RIV/68081731:_____/17:00468428 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.2351/1.4968621" target="_blank" >http://dx.doi.org/10.2351/1.4968621</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2351/1.4968621" target="_blank" >10.2351/1.4968621</a>
Alternative languages
Result language
angličtina
Original language name
Autocorrelation analysis of plasma plume light emissions in deep penetration laser welding of steel
Original language description
The light emissions of the plasma plume in the deep penetration laser welding of metals typically have the character of irregular short-time pulses. Their nature indicates that the size of the plume significantly fluctuates and the plasma flows out of the keyhole in the form of short bursts rather than a continuous flow. In this paper, the authors study the plasma plume light emissions using an autocorrelation analysis. The authors show that it is an efficient tool for the detection of the plasma bursts period which is typically in the order of milliseconds. The authors compare the autocorrelation characteristics and the geometry of the welds made on a 2 kW ytterbium-doped yttrium aluminium garnet (Yb:YAG) fiber laser welding machine for the X5CrNi 18-10 stainless steel and the S235JR carbon steel. The welding parameters settings is varied over a range of laser power (1-2 kW) and welding speed (10-30 mm/s) usually used in industry. As a result, the authors identify a linear dependence between the plasma bursts period and the weld depth.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
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
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Laser Applications
ISSN
1042-346X
e-ISSN
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Volume of the periodical
29
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
1-10
UT code for WoS article
000395105900014
EID of the result in the Scopus database
2-s2.0-85000910734