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Statements

Subject Item
n2:RIV%2F68081731%3A_____%2F10%3A00352708%21RIV14-MPO-68081731
rdf:type
n12:Vysledek skos:Concept
dcterms:description
The depth of penetration is probably the most important factor that influences the quality of a laser weld. The depth strongly depends on the focus of the welding beam. The sublimating material forms plasma vapors, that act as a lens and defocus the laser beam. Our contribution presents a method to compensate this phenomenon using an adaptive mirror - a mirror with flexible surface that can adjust the shape of the welding beam. The mirror is regulated by a feedback control loop so that the focus of the laser beam and the penetration depth remain in an optimal range. Since the only possibility to state the penetration depth is to monitor outer effects to estimate desired parameters. a sensor unit is used to monitor the optical emissions of the plasma vapors and the measured data are inputs to an algorithm that estimates the penetration depth. The depth of penetration is probably the most important factor that influences the quality of a laser weld. The depth strongly depends on the focus of the welding beam. The sublimating material forms plasma vapors, that act as a lens and defocus the laser beam. Our contribution presents a method to compensate this phenomenon using an adaptive mirror - a mirror with flexible surface that can adjust the shape of the welding beam. The mirror is regulated by a feedback control loop so that the focus of the laser beam and the penetration depth remain in an optimal range. Since the only possibility to state the penetration depth is to monitor outer effects to estimate desired parameters. a sensor unit is used to monitor the optical emissions of the plasma vapors and the measured data are inputs to an algorithm that estimates the penetration depth.
dcterms:title
Adaptive feedback beam shaping of the CO2 welding laser Adaptive feedback beam shaping of the CO2 welding laser
skos:prefLabel
Adaptive feedback beam shaping of the CO2 welding laser Adaptive feedback beam shaping of the CO2 welding laser
skos:notation
RIV/68081731:_____/10:00352708!RIV14-MPO-68081731
n3:aktivita
n10:Z n10:P
n3:aktivity
P(2A-3TP1/113), Z(AV0Z20650511)
n3:dodaniDat
n6:2014
n3:domaciTvurceVysledku
n15:2487667 n15:9837914
n3:druhVysledku
n18:D
n3:duvernostUdaju
n5:S
n3:entitaPredkladatele
n21:predkladatel
n3:idSjednocenehoVysledku
245387
n3:idVysledku
RIV/68081731:_____/10:00352708
n3:jazykVysledku
n17:eng
n3:klicovaSlova
laser beam welding; adaptive optics; laser welding control; light emission monitoring
n3:klicoveSlovo
n4:adaptive%20optics n4:laser%20beam%20welding n4:light%20emission%20monitoring n4:laser%20welding%20control
n3:kontrolniKodProRIV
[981D4845594D]
n3:mistoKonaniAkce
San Diego
n3:mistoVydani
Bellingham
n3:nazevZdroje
Laser Beam Shaping XI (Proceedings of SPIE Vol. 7789)
n3:obor
n11:BH
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
4
n3:projekt
n9:2A-3TP1%2F113
n3:rokUplatneniVysledku
n6:2010
n3:tvurceVysledku
Šarbort, M. Řeřucha, Šimon Mrňa, L. Jedlička, Petr
n3:typAkce
n20:WRD
n3:wos
000287705600025
n3:zahajeniAkce
2010-08-02+02:00
n3:zamer
n8:AV0Z20650511
s:numberOfPages
8
n16:hasPublisher
SPIE
n14:isbn
978-0-8194-8285-3