About: Dependence of energy distribution in the keyhole on optical parameters of the focusing system in laser welding

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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. (en)
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 (en)
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 (en)
skos:notation	RIV/68081731:_____/11:00386109!RIV13-AV0-68081731
http://linked.open...avai/predkladatel	Ústav přístrojové techniky AV ČR, v. v. i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(2A-3TP1/113), P(TA01010995), Z(AV0Z20650511)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Šarbort, Martin Mrňa, Libor Jedlička, Petr Řeřucha, Šimon
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav přístrojové techniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	193345
http://linked.open...ai/riv/idVysledku	RIV/68081731:_____/11:00386109
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	laser beam welding; keyhole; energy distribution; laser beam shaping (en)
http://linked.open.../riv/klicoveSlovo	energy distribution keyhole laser beam shaping laser beam welding
http://linked.open...ontrolniKodProRIV	[BA6F27AFC7E1]
http://linked.open...v/mistoKonaniAkce	Orlando
http://linked.open...i/riv/mistoVydani	Orlando
http://linked.open...i/riv/nazevZdroje	ICALEO 2011 Conference Proceedings
http://linked.open...in/vavai/riv/obor	JB
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Stabilized laser sources fro spectrometer calibration of optical communications. *Investigetion of dynamics of the laser welding process and its control
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Šarbort, Martin Řeřucha, Šimon Jedlička, Petr Mrňa, Libor
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2011-10-23 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Research into experimental methods for examination of the physical properties of matter and their application in advanced technologies
number of pages	9 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Laser Institute of America
https://schema.org/isbn	978-0-912035-94-9
is http://linked.open...avai/riv/vysledek of	Dependence of energy distribution in the keyhole on optical parameters of the focusing system in laser welding

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