The Influence of the Current Density in the Open Welding Arc Active Spots on Cathode and Anode Voltage Breakdowns

Abstract:

Surfacing in gas-shielded as well as by the open arc burning between consumable electrodes, is usually made in reverse polarity. It is connected with the stable burning of arc and the minimum spatter of electrode metal. In this case, the cathode spot of the welding arc is on the plate, and the anode spot is on the wire end. These conditions of the arc spots existence affect the processes proceeding in the cathode and anode areas of the arc. The article considers the influence of the arc active spots formation conditions and its modes on the cathode and anode voltage breakdowns.

• Periodical: Materials Science Forum (Volume 843)
• Pages: 236-241
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.843.236
• Online since: February 2016
• Authors: A.M. Osipov*, Yuriy Viktorovich Bezgans, T.V. Bezgans
• Keywords: Active Spots, Anode Falls of Voltages, Cathode Falls of Voltages, Current Density, Open Welding Arc

References

[1] V.I. Dyatlov, Volt-ampere characteristic of a compressed electric arc, Automatic welding. 1 (1961) 17-29.

[2] G.I. Leskov, Electric welding arc, Mashgiz., Moscow, (1970).

[3] D.M. Rybkin, The energy studies of the near-electrode areas of the powerful arc, Automatic welding. 7 (1966) 23-27.