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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Vydáno v:Journal of manufacturing processes Ročník 84; s. 216 - 222
Hlavní autoři: Horník, Petr, Šebestová, Hana, Novotný, Jan, Mrňa, Libor
Médium: Journal Article
Jazyk:angličtina
Vydáno: Elsevier Ltd 01.12.2022
Témata:
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
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Popis
Shrnutí: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