Open AccessPulsed welding plasma source
Author(s) -
A.F. Knyaz'kov,
O Pustovykh,
A Verevkin,
V. A. Terekhin,
A Shachek,
A Tyasto
Publication year - 2016
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/124/1/012164
Subject(s) - plasma arc welding , welding , arc (geometry) , materials science , electrode , arc welding , gas metal arc welding , voltage , pulse (music) , welding power supply , current (fluid) , acoustics , electrical engineering , mechanical engineering , engineering , metallurgy , physics , filler metal , quantum mechanics
It is shown that in order to form the current pulse of a near rectangular shape, which provides conversion of the welding arc into a dynamic mode, it is rational to connect a forming element made on the basis of an artificial forming line in series to the welding DC circuit. The paper presents a diagram of a pulsed device for welding with a non-consumable electrode in argon which was developed using the forming element. The conversion of the arc into the dynamic mode is illustrated by the current and voltage oscillograms of the arc gap and the dynamic characteristic of the arc within the interval of one pulse generation time in the arc gap. The background current travels in the interpulse interval