Gas-Dynamic Impact of a Shielding Gas Jet on the Drop Transfer when Welding with a Consumable Electrode

Abstract:

The processes taking place in a drop of a molten electrode metal and in a metal of a weld pool play the dominant role in formation of joint welds properties. In consumable electrode welding with jet gas shielding under certain conditions a drop of an electrode metal is influenced by the main forces as well as by the force of a shielding gas jet impact which depends upon the method and composition of a gas shielding in a welding area. The results of research have stated that the force of a shielding gas jet impact on a drop of an electrode metal in double-jet gas shielding is twelvefold as in one-jet one; it is directed along the electrode to a workpiece and stimulates stability of the electrode metal drops transfer into a weld pool.

• Periodical: Advanced Materials Research (Volume 1040)
• Pages: 850-853
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1040.850
• Online since: September 2014
• Authors: Dmitry A. Chinakhov*, A.V. Zuev, A.G. Filimonenko
• Keywords: Double-Jet Gas Shield, Electrode Metal Drop, Gas-Dynamic Impact, Welding

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