Heat transfer modeling of double-side arc welding

Jun Sheng Sun, Chuan Song Wu, Y. M. Zhang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


If a plasma arc and a TIG arc are connected in serial and with the plasma arc placed on the obverse side and the TIG arc on the opposite side of the workpiece, a special double-side arc welding (DSAW) system will be formed, in which the PAW current is forced to flow through the keyhole along the thickness direction so as to compensate the energy consumed for melting the workpiece and improve the penetration capacity of the PAW arc. By considering the mechanics factors which influence the DSAW pool geometric shape, the control equations of the pool surface deformation are derived, and the mathematics mode for DSAW heat transfer is established by using boundary-fitted non-orthogonal coordinate systems. With this model, the difference between DSAW and PAW heat transfer is analyzed and the reason for the increase of DSAW penetration is explained from the point of heat transfer. The welding process experiments show that calculated results are in good agreement with measured ones.

Original languageEnglish
Pages (from-to)290
Number of pages1
JournalWuli Xuebao/Acta Physica Sinica
Issue number2
StatePublished - Feb 2002


  • Double-side arc welding (DSAW)
  • Heat transfer model
  • Weldpool surface deformation model

ASJC Scopus subject areas

  • General Physics and Astronomy


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