| 2008 №03 (02) | 2008 №03 (04) |
The Paton Welding Journal, 2008, #3, 13-17 pages
Effect of longitudinal magnetic field on characteristics of the arc in tig welding in argon atmosphere
A.D. Razmyshlyaev, M.V. Mironova, A.A. Deli
Priazovsky State Technical University, Mariupol, UkraineAbstract
It is demonstrated experimentally, using the split anode method, that diameter of the active (anode) spot on a workpiece decreases with increase in induction of the longitudinal magnetic field within the arc zone, while distribution of density of the current along its radius is more uniform than in welding without the longitudinal magnetic field. It is shown by the probe method that gas-dynamic pressure at the arc centre decreases under the effect of the magnetic field.
Keywords: TIG welding, tungsten electrode, longitudinal magnetic field, arc anode spot, current density, gas-dynamic pressure of the arc
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