Visualization of laser back-reflection distribution during laser welding
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F21%3A00551128" target="_blank" >RIV/68081731:_____/21:00551128 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1757-899X/1135/1/012015" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/1135/1/012015</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1757-899X/1135/1/012015" target="_blank" >10.1088/1757-899X/1135/1/012015</a>
Alternative languages
Result language
angličtina
Original language name
Visualization of laser back-reflection distribution during laser welding
Original language description
There are several approaches to weld quality monitoring during laser welding. Reflected laser radiation carries partial information about the welding process. Fibre lasers has usually a built-in diode to detect excessive back-reflected laser radiation to protect the laser source from damage. Reflected laser radiation measured in the laser source is compared with reflected laser radiation measured in the welding head. Moreover, coaxial high-speed imaging with a narrow bandpass filter on laser wavelength is used to visualize the reflected laser radiation. The advantage of this solution is that no additional illumination is needed and the reflected laser intensity and spatial distribution can be obtained from the image. Keyhole inlet dimensions are measured and related to the laser power. The transition between laser welding modes is studied.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
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
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
IOP Conference Series: Materials Science and Engineering
ISBN
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ISSN
1757-8981
e-ISSN
1757-899X
Number of pages
9
Pages from-to
012015
Publisher name
IOP Publishing
Place of publication
Bristol
Event location
Luleå
Event date
Jan 18, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000766307500015