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Statements

Subject Item
n2:RIV%2F68081731%3A_____%2F11%3A00386109%21RIV13-AV0-68081731
rdf:type
skos:Concept n17:Vysledek
dcterms:description
Deep penetration laser welding performed by continuous high-power laser beam is characteristic by creation of a thin capillary, called a keyhole, within the welded material and the depth of the keyhole determines the depth of the resulting weld. Geometry of the keyhole and energy distribution on its walls depend mainly on the material properties and the welding parameters such as power, translation velocity and focus characteristics of the incident laser beam. This paper presents a physical concept and a numerical simulation of the keyhole creation and its inner energy distribution in dependence on geometric parameters of the laser beam which are given by focusing system of the welding machine. We show the impact of the size of a beam waist, its position with respect to the surface of welded material and total angular spread of focused beam on the keyhole depth and on the distribution of its walls irradiation. The results of numerical simulation are also compared to the depth of real material joint observed in material samples from testing welds. Deep penetration laser welding performed by continuous high-power laser beam is characteristic by creation of a thin capillary, called a keyhole, within the welded material and the depth of the keyhole determines the depth of the resulting weld. Geometry of the keyhole and energy distribution on its walls depend mainly on the material properties and the welding parameters such as power, translation velocity and focus characteristics of the incident laser beam. This paper presents a physical concept and a numerical simulation of the keyhole creation and its inner energy distribution in dependence on geometric parameters of the laser beam which are given by focusing system of the welding machine. We show the impact of the size of a beam waist, its position with respect to the surface of welded material and total angular spread of focused beam on the keyhole depth and on the distribution of its walls irradiation. The results of numerical simulation are also compared to the depth of real material joint observed in material samples from testing welds.
dcterms:title
Dependence of energy distribution in the keyhole on optical parameters of the focusing system in laser welding Dependence of energy distribution in the keyhole on optical parameters of the focusing system in laser welding
skos:prefLabel
Dependence of energy distribution in the keyhole on optical parameters of the focusing system in laser welding Dependence of energy distribution in the keyhole on optical parameters of the focusing system in laser welding
skos:notation
RIV/68081731:_____/11:00386109!RIV13-AV0-68081731
n17:predkladatel
n20:ico%3A68081731
n3:aktivita
n12:Z n12:P
n3:aktivity
P(2A-3TP1/113), P(TA01010995), Z(AV0Z20650511)
n3:dodaniDat
n13:2013
n3:domaciTvurceVysledku
n9:6620973 n9:2487667 n9:1041959 n9:9837914
n3:druhVysledku
n22:D
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
193345
n3:idVysledku
RIV/68081731:_____/11:00386109
n3:jazykVysledku
n18:eng
n3:klicovaSlova
laser beam welding; keyhole; energy distribution; laser beam shaping
n3:klicoveSlovo
n6:energy%20distribution n6:keyhole n6:laser%20beam%20shaping n6:laser%20beam%20welding
n3:kontrolniKodProRIV
[BA6F27AFC7E1]
n3:mistoKonaniAkce
Orlando
n3:mistoVydani
Orlando
n3:nazevZdroje
ICALEO 2011 Conference Proceedings
n3:obor
n16:JB
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n7:2A-3TP1%2F113 n7:TA01010995
n3:rokUplatneniVysledku
n13:2011
n3:tvurceVysledku
Jedlička, Petr Mrňa, Libor Šarbort, Martin Řeřucha, Šimon
n3:typAkce
n10:WRD
n3:zahajeniAkce
2011-10-23+02:00
n3:zamer
n19:AV0Z20650511
s:numberOfPages
9
n5:hasPublisher
Laser Institute of America
n11:isbn
978-0-912035-94-9