Paper Title:
Numerical Simulation of Pulsed Arc Welding by Melting Electrode
  Abstract

In this paper the processes of melting and transfer of an electrode metal to the molten pool, hydrodynamics of molten pool in controlled pulsed arc welding in carbon dioxide have been investigated. The process of pulsed arc welding with systematic short-circuits of the arc gap is realized by adaptive algorithms of pulsed control over main energetic parameters of welding - arc current and voltage, arc heated efficiency, peak short-circuiting current, which provide the dosage of energy for melting and transfer of every drop of an electrode metal, the control over fluidity of the weld pool. Physical and mathematical models describing such processes in CO2, original software have been developed. The results of physical simulation and mathematical modelling permit to determine the influence of energetic parameters of the process on the condition of the “power source – electrode – arc – molten pool” electrodynamic system at each moment of time.

  Info
Periodical
Materials Science Forum (Volumes 575-578)
Edited by
Jitai NIU, Zuyan LIU, Cheng JIN and Guangtao Zhou
Pages
786-791
DOI
10.4028/www.scientific.net/MSF.575-578.786
Citation
O.I. Shpigunova, A.A. Glazunov, "Numerical Simulation of Pulsed Arc Welding by Melting Electrode", Materials Science Forum, Vols. 575-578, pp. 786-791, 2008
Online since
April 2008
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Price
$32.00
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