Numerical study of the effect of the oscillation frequency in buttonhole welding.

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Title: Numerical study of the effect of the oscillation frequency in buttonhole welding.
Authors: Cho, Won-Ik1 cho@bias.de, Schultz, Villads1, Woizeschke, Peer1
Source: Journal of Materials Processing Technology. Nov2018, Vol. 261, p202-212. 11p.
Subjects: Laser welding, Laser beams, Mechanical oscillations, Filler materials, Fourier analysis
Abstract: A three-dimensional transient simulation was conducted with comprehensive models of the laser welding process with a combination of wire feeding and one-dimensional sinusoidal beam oscillation. Both a realistic filler wire feeding and simultaneous melting by oscillating laser beam were considered. The buttonhole formation, which was shown in the simulations, was affected by the shape of the molten filler wire, e.g. the length and angle. The buttonholes formed at higher oscillation frequencies and became clearer with increasing oscillation frequency. The so-called chopping frequency of the wire, found in the frequency domain through Fourier analysis, became more dominant with increasing oscillation frequency. The wire chopping process seems to affect the number of multiple reflections, the power absorption, and the buttonhole behavior. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Processing Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 130600609
AccessLevel: 6
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PubTypeId: academicJournal
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  Label: Title
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  Data: Numerical study of the effect of the oscillation frequency in buttonhole welding.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Cho%2C+Won-Ik%22">Cho, Won-Ik</searchLink><relatesTo>1</relatesTo><i> cho@bias.de</i><br /><searchLink fieldCode="AR" term="%22Schultz%2C+Villads%22">Schultz, Villads</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Woizeschke%2C+Peer%22">Woizeschke, Peer</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Processing+Technology%22">Journal of Materials Processing Technology</searchLink>. Nov2018, Vol. 261, p202-212. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Laser+welding%22">Laser welding</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+beams%22">Laser beams</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+oscillations%22">Mechanical oscillations</searchLink><br /><searchLink fieldCode="DE" term="%22Filler+materials%22">Filler materials</searchLink><br /><searchLink fieldCode="DE" term="%22Fourier+analysis%22">Fourier analysis</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A three-dimensional transient simulation was conducted with comprehensive models of the laser welding process with a combination of wire feeding and one-dimensional sinusoidal beam oscillation. Both a realistic filler wire feeding and simultaneous melting by oscillating laser beam were considered. The buttonhole formation, which was shown in the simulations, was affected by the shape of the molten filler wire, e.g. the length and angle. The buttonholes formed at higher oscillation frequencies and became clearer with increasing oscillation frequency. The so-called chopping frequency of the wire, found in the frequency domain through Fourier analysis, became more dominant with increasing oscillation frequency. The wire chopping process seems to affect the number of multiple reflections, the power absorption, and the buttonhole behavior. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Processing Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jmatprotec.2018.05.024
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 202
    Subjects:
      – SubjectFull: Laser welding
        Type: general
      – SubjectFull: Laser beams
        Type: general
      – SubjectFull: Mechanical oscillations
        Type: general
      – SubjectFull: Filler materials
        Type: general
      – SubjectFull: Fourier analysis
        Type: general
    Titles:
      – TitleFull: Numerical study of the effect of the oscillation frequency in buttonhole welding.
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          Name:
            NameFull: Cho, Won-Ik
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            NameFull: Schultz, Villads
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            NameFull: Woizeschke, Peer
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          Dates:
            – D: 01
              M: 11
              Text: Nov2018
              Type: published
              Y: 2018
          Identifiers:
            – Type: issn-print
              Value: 09240136
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            – Type: volume
              Value: 261
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            – TitleFull: Journal of Materials Processing Technology
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