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Penetration-depth control in a remote laser-welding system based on an optical triangulation loop
ID Kos, Matjaž (Avtor), ID Arko, Erih (Avtor), ID Kosler, Hubert (Avtor), ID Jezeršek, Matija (Avtor)

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Izvleček
Remote laser-welding systems are being used more frequently because of their larger working areas, shorter downtimes and ability to weld different seam types with high accuracy at greater speeds in comparison to conventional welding. Therefore, precise process-monitoring methods are needed in order to achieve weld traceability and good process and quality control to accompany different welding situations. This paper proposes the use of optical triangulation feedback on a remote laser-welding system that makes it possible to monitor a larger working area. This configuration means we can monitor the interaction zone itself, analyze the 3D position of the laser beam and key process estimators as a result of laser welding. AISI steel plates were welded in a lap configuration to show that stable partial penetration can be achieved. First, a dependency matrix was constructed for the different welding parameters (material thicknesses, welding speeds and laser powers) in order to describe the change of the weld's penetration depth with respect to the key estimators. An approximation was used to characterize the change of the weld's depth according to the change of the estimators. The experimental results demonstrate that the interaction zone's area can be used to successfully control the laser's power output in order to achieve a stable partial penetration with an error of less than 7 % of the desired target weld depth. Longitudinal macrographies show a significantly more constant weld penetration depth and laser-induced plume reduction during welding.

Jezik:Angleški jezik
Ključne besede:laser-power control, laser process monitoring, penetration depth control, remote laser welding, triangulation feedback
Vrsta gradiva:Članek v reviji (dk_c)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2021
Status objave pri reviji:Objavljeno
Verzija članka:Založnikova različica članka
Št. strani:14 str.
Številčenje:Vol. 139, art. 106464
PID:20.500.12556/RUL-138442 Povezava se odpre v novem oknu
UDK:621.791.725:004.72(045)
ISSN pri članku:0143-8166
DOI:10.1016/j.optlaseng.2020.106464 Povezava se odpre v novem oknu
COBISS.SI-ID:42940675 Povezava se odpre v novem oknu
Datum objave v RUL:20.07.2022
Število ogledov:115
Število prenosov:37
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Gradivo je del revije

Naslov:Optics and lasers in engineering
Skrajšan naslov:Opt. lasers eng.
Založnik:Elsevier
ISSN:0143-8166
COBISS.SI-ID:6399749 Povezava se odpre v novem oknu

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:lasersko krmiljenje moči, nadzor laserskega procesa, nadzor globine prevaritve, lasersko daljinsko varjenje, triangulacijska povratna zanka

Projekti

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Slovenia
Številka projekta:C3330-16-529000
Akronim:GOSTOP

Financer:EC - European Commission
Program financ.:ERDF
Akronim:GOSTOP

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0392
Naslov:Optodinamika

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