Division of Environmental Physics - User: student
Faculty of Mathematics, Physics and Informatics, Comenius University Bratislava

Ignition of welding arc during a short-circuit of melted electrodes

Hajossy R., Pastva P., Morva I.
J. Phys.D.: Appl.Phys. 32, 1058-1065 (1999)

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Abstract:

It is shown that an arc discharge in a welding process with fusible electrodes (GMAW) starts before a short-circuit bridge, made by a metal drop between the electrodes, is broken.A possibility of this premature ignition is proved by voltage and current measurements, by analysis of electric field near the neck of the drop and also by simulation of current increase in an electric discharge.

Citations:

1.)	Blumschein E. : Journal of Physics D, Vol. 33, 2000, No. 18. p. 2338-2341 - SCI (2000) -------------