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A new superimposed double-arc welding method with one arc submerged in the weld pool.

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Title: A new superimposed double-arc welding method with one arc submerged in the weld pool.
Authors: Liu, Liming1 liulm@dlut.edu.cn, Chen, Minghua1, Li, Chenbin1, Yang, Linbo1
Source: International Journal of Advanced Manufacturing Technology. Oct2014, Vol. 75 Issue 1-4, p331-337. 7p. 1 Color Photograph, 5 Black and White Photographs, 2 Diagrams, 2 Graphs.
Subjects: Gas tungsten arc welding, Superimposed coding, Workpieces, Gas flow, Penetration depth (Superconductors)
Abstract: This study presents a new double-gas tungsten arc welding heat source, with two arcs serially arranged on the same side of a workpiece. During welding, a tungsten tube and inert gas are additionally used to help the rear electric arcs burn at the bottom of the existing weld pool formed by the fore arc. Bead-on-plate welding experiments using this heat source are carried out to investigate the heating efficiency of the heat source and the influences of the arc current, the gas flow rate in the tube on the welding process. Results show that the heat source presents higher melting efficiency and stronger heat penetrability compared with normal double-gas tungsten arc welding. The interactions of the forces near the weld pool in the welding process are also analyzed. Observation of the arc behavior by a high-speed camera proves that the electromagnetic force between the two burning arcs stabilizes the burning arcs and thus the welding process. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature 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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  Data: A new superimposed double-arc welding method with one arc submerged in the weld pool.
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  Data: <searchLink fieldCode="AR" term="%22Liu%2C+Liming%22">Liu, Liming</searchLink><relatesTo>1</relatesTo><i> liulm@dlut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Minghua%22">Chen, Minghua</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Li%2C+Chenbin%22">Li, Chenbin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yang%2C+Linbo%22">Yang, Linbo</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Advanced+Manufacturing+Technology%22">International Journal of Advanced Manufacturing Technology</searchLink>. Oct2014, Vol. 75 Issue 1-4, p331-337. 7p. 1 Color Photograph, 5 Black and White Photographs, 2 Diagrams, 2 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Gas+tungsten+arc+welding%22">Gas tungsten arc welding</searchLink><br /><searchLink fieldCode="DE" term="%22Superimposed+coding%22">Superimposed coding</searchLink><br /><searchLink fieldCode="DE" term="%22Workpieces%22">Workpieces</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+flow%22">Gas flow</searchLink><br /><searchLink fieldCode="DE" term="%22Penetration+depth+%28Superconductors%29%22">Penetration depth (Superconductors)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study presents a new double-gas tungsten arc welding heat source, with two arcs serially arranged on the same side of a workpiece. During welding, a tungsten tube and inert gas are additionally used to help the rear electric arcs burn at the bottom of the existing weld pool formed by the fore arc. Bead-on-plate welding experiments using this heat source are carried out to investigate the heating efficiency of the heat source and the influences of the arc current, the gas flow rate in the tube on the welding process. Results show that the heat source presents higher melting efficiency and stronger heat penetrability compared with normal double-gas tungsten arc welding. The interactions of the forces near the weld pool in the welding process are also analyzed. Observation of the arc behavior by a high-speed camera proves that the electromagnetic force between the two burning arcs stabilizes the burning arcs and thus the welding process. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature 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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        Value: 10.1007/s00170-014-6116-9
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      – Code: eng
        Text: English
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        PageCount: 7
        StartPage: 331
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      – SubjectFull: Gas tungsten arc welding
        Type: general
      – SubjectFull: Superimposed coding
        Type: general
      – SubjectFull: Workpieces
        Type: general
      – SubjectFull: Gas flow
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      – SubjectFull: Penetration depth (Superconductors)
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              M: 10
              Text: Oct2014
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              Y: 2014
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