2021
DOI: 10.1016/j.optlastec.2020.106715
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Influence of oscillating magnetic field on the keyhole stability in deep penetration laser beam welding

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Cited by 14 publications
(3 citation statements)
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“…Additionally, weld F does not present the solid inclusions of oxide, slag, flux, or copper. Very low porosity formation is also reported in the work of Üstündag et al [45]. In order to prevent porosity, Üstündag et al ascertain that using an oscillating magnetic and electric field (EMF) and its influence on the welding depth favor the stability of the keyhole on a butt configuration of a 25 mm thick structural steel plate (S355J2).…”
Section: Evaluation Of Imperfectionsmentioning
confidence: 84%
“…Additionally, weld F does not present the solid inclusions of oxide, slag, flux, or copper. Very low porosity formation is also reported in the work of Üstündag et al [45]. In order to prevent porosity, Üstündag et al ascertain that using an oscillating magnetic and electric field (EMF) and its influence on the welding depth favor the stability of the keyhole on a butt configuration of a 25 mm thick structural steel plate (S355J2).…”
Section: Evaluation Of Imperfectionsmentioning
confidence: 84%
“…One can see that both algorithms lead to energy deposition at the keyhole wall that allows for sufficient accuracy in the calculation of the weld cross section when compared with the experimental conditions in the relatively low welding speed range of 1.3 m min −1 . A preliminary experimental observation technique using a combination of metal and quartz glass in a butt joint configuration according to another study [ 42 ] was used, allowing for optical observation of the weld pool from the side. It shows that narrowing of the weld pool in the longitudinal section and corresponding bulging in the lower part occur, which can neither be seen in the experimental cross sections nor the simulated ones, see Figure 6a.…”
Section: Resultsmentioning
confidence: 99%
“…Xu et al [11] performed full-penetration laser welding on A5083 aluminum alloy and they concluded that appropriate oscillating electromagnetic field can effectively reduce the sagging of the weld root. Üstündağ et al [12] conducted laser welding experiment on 25mm thick structural steel with an oscillating magnetic field and they ascertained that the stability of the keyhole and the weld penetration depth were increased by magnetic field. Li et al [13] applied electromagnetic assisted wire wobbling in laser narrow gap welding of 316 L stainless steel and they verified that the wettability of liquid weld metal on the sidewall of the groove was improved.…”
Section: Introductionmentioning
confidence: 99%