Laser beam oscillation strategy for weld geometry variation

This paper provides an insight into producing of laser welds with various cross-sections using beam oscillation techniques. Basic (line, circle, eight, and infinity) and advanced (celtic, flower, and atom) oscillation modes were experimentally investigated and compared to the conventional laser weld...

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Bibliographic Details
Published in:Journal of manufacturing processes Vol. 84; pp. 216 - 222
Main Authors: Horník, Petr, Šebestová, Hana, Novotný, Jan, Mrňa, Libor
Format: Journal Article
Language:English
Published: Elsevier Ltd 01.12.2022
Subjects:
Beam oscillation
Laser welding
Penetration depth
Power density distribution
Weld cross-section
Wobbling
Wobbling
Power density distribution
Laser welding
Beam oscillation
Weld cross-section
Penetration depth
ISSN:1526-6125, 2212-4616
Online Access:Get full text
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Summary:This paper provides an insight into producing of laser welds with various cross-sections using beam oscillation techniques. Basic (line, circle, eight, and infinity) and advanced (celtic, flower, and atom) oscillation modes were experimentally investigated and compared to the conventional laser welds made with the same laser power and welding speed. Laser spot trajectories and time-dependent energy per unit spot trajectory length were visualized to explain the differences in weld cross-sections. The local power density distribution was calculated to estimate the weld geometry dependent on the oscillation mode, oscillation amplitude, frequency, and welding speed. [Display omitted]
ISSN:1526-6125
2212-4616
DOI:10.1016/j.jmapro.2022.10.016