The Paton Welding Journal, 2010, №06



2010 №06 (10)

2010 №06 (02)

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TPWJ, 2010, #6, 2-9 pages
 
MODEL OF THE PROCESSES OF HEAT, MASS AND CHARGE TRANSFER IN THE ANODE REGION AND COLUMN OF THE WELDING ARC WITH REFRACTORY CATHODE


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 6, 2010 (June)
Pages                      2-9
 
 
Authors
I.V. KRIVTSUN¹, V.F. DEMCHENKO¹ and I.V. KRIKENT^2
1E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
²Dneprodzerzhinsk State Technical University, Dneprodzerzhinsk, Ukraine
 
 
Abstract
The main difference of the proposed mathematical model of the welding arc from the known ones describing the atmospheric-pressure arcs is allowance for the multi-component composition of the arc plasma, which is caused by evaporation of the anode metal and convective diffusion of metal vapours in the arc column. The model can be used for numerical analysis of thermal, gas-dynamic and electromagnetic characteristics of the arc plasma in inert-gas tungstenelectrode and plasma welding, as well as for modelling of thermal and dynamic effects of the arc on the weld pool surface.
 
 
Keywords: tungsten-electrode welding, plasma welding, electric arc, arc column, multi-component plasma, anode region, anode potential drop, mathematical model
 
 
Received:                ??.??.??
Published:               28.06.10
 
 
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