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

D 2011

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

ŠARBORT, Martin; Libor MRŇA; Šimon ŘEŘUCHA a Petr JEDLIČKA

Základní údaje

Originální název

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

Autoři

ŠARBORT, Martin; Libor MRŇA; Šimon ŘEŘUCHA a Petr JEDLIČKA

Vydání

Orlando, FL, USA, Conference proceedings ICALEO 2011, od s. 418-426, 9 s. 2011

Nakladatel

Laser Institute of America

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

20303 Thermodynamics

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-0-912035-94-9

Klíčová slova anglicky

laser beam welding; keyhole; energy distribution; laser beam shaping

Změněno: 7. 3. 2012 15:41, Mgr. Martin Šarbort, Ph.D.

Anotace

V originále

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.

Návaznosti

2A-3TP1/113, projekt VaV

Název: *Výzkum dynamiky laserového svařovacího procesu a jeho řízení

Citovat

ŠARBORT, Martin; Libor MRŇA; Šimon ŘEŘUCHA a Petr JEDLIČKA. Dependence of energy distribution in the keyhole on optical parameters of the focusing system in laser welding. In Conference proceedings ICALEO 2011. Orlando, FL, USA: Laser Institute of America, 2011, s. 418-426. ISBN 978-0-912035-94-9.

@inproceedings{974448,
   author = {Šarbort, Martin and Mrňa, Libor and Řeřucha, Šimon and Jedlička, Petr},
   address = {Orlando, FL, USA},
   booktitle = {Conference proceedings ICALEO 2011},
   keywords = {laser beam welding; keyhole; energy distribution; laser beam shaping},
   language = {eng},
   location = {Orlando, FL, USA},
   isbn = {978-0-912035-94-9},
   pages = {418-426},
   publisher = {Laser Institute of America},
   title = {Dependence of energy distribution in the keyhole on optical parameters of the focusing system in laser welding},
   year = {2011}
}

TY  - CONF
ID  - 974448
AU  - Šarbort, Martin - Mrňa, Libor - Řeřucha, Šimon - Jedlička, Petr
PY  - 2011
TI  - Dependence of energy distribution in the keyhole on optical parameters of the focusing system in laser welding
PB  - Laser Institute of America
CY  - Orlando, FL, USA
SN  - 9780912035949
KW  - laser beam welding
KW  - keyhole
KW  - energy distribution
KW  - laser beam shaping
N2  - 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.
ER  -

ŠARBORT, Martin; Libor MRŇA; Šimon ŘEŘUCHA a Petr JEDLIČKA. Dependence of energy distribution in the keyhole on optical parameters of the focusing system in laser welding. In \textit{Conference proceedings ICALEO 2011}. Orlando, FL, USA: Laser Institute of America, 2011, s.~418-426. ISBN~978-0-912035-94-9.

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