Definition of Peak Value of Welding Current at Pulsed Arc Welding

2014 ◽  
Vol 682 ◽  
pp. 397-400 ◽  
Author(s):  
N.Yu Krampit ◽  
M.A. Krampit ◽  
L.N. Zubenko

Pulsed arc welding is one of the ways to control the process of an electrode metal drop transfer actively. Conditions of an electrode metal directional transfer during a pulse-arc welding were investigated, and provided the basis for welding current peak value calculation. Theoretical conditions of an electrode metal drop detachment during a pulse-arc carbon dioxide welding were proved experimentally.

2014 ◽  
Vol 682 ◽  
pp. 332-338 ◽  
Author(s):  
Yu.N. Saraev ◽  
V.A. Lebedev ◽  
S.A. Solodsky

This paper deals with issues related to the development and practical application of adaptive pulse-arc welding in the manufacture and repair of metal for critical applications. Created methods of adaptive pulsed arc welding into account the results of studies of the kinetics of melting and transfer of electrode metal into the weld pool, which is of great theoretical and practical significance. These methods ensure defect-free formation of root, fill and cap welds in manufacturing steel in different spatial position.


2008 ◽  
Vol 575-578 ◽  
pp. 786-791
Author(s):  
O.I. Shpigunova ◽  
A.A. Glazunov

In this paper the processes of melting and transfer of an electrode metal to the molten pool, hydrodynamics of molten pool in controlled pulsed arc welding in carbon dioxide have been investigated. The process of pulsed arc welding with systematic short-circuits of the arc gap is realized by adaptive algorithms of pulsed control over main energetic parameters of welding - arc current and voltage, arc heated efficiency, peak short-circuiting current, which provide the dosage of energy for melting and transfer of every drop of an electrode metal, the control over fluidity of the weld pool. Physical and mathematical models describing such processes in CO2, original software have been developed. The results of physical simulation and mathematical modelling permit to determine the influence of energetic parameters of the process on the condition of the “power source – electrode – arc – molten pool” electrodynamic system at each moment of time.


2014 ◽  
Vol 682 ◽  
pp. 386-391 ◽  
Author(s):  
A.G. Krampit ◽  
A.V. Dmitriyeva

High-speed shooting records of consumable electrode pulsed arc welding in an atmosphere of carbon dioxide gas help to obtain data of changes on a weld pool surface.


2020 ◽  
Vol 2020 (6) ◽  
pp. 11-16
Author(s):  
A.V. Zavdoveev ◽  
◽  
V.D. Pozdnyakov ◽  
M. Rogante ◽  
S.L. Zhdanov ◽  
...  

Author(s):  
S. Katoh

As a consequence of developments in the electronic control of welding power sources, there has been a trend for even inexpensive and widely used metal inert gas (MIG) and tungsten inert gas (TIG) welding machines to be equipped, as standard, with a high performance pulsed current waveform control function. Meanwhile advances in understanding of pulsed arc welding phenomena and the clarification of the associated functional effects have resulted in a gradual expansion of its scope of application and of improvements in practical performance. Thus inert gas shielded arc welding is entering an epoch when full scale pulsed arc welding will become standard. In this article, the progress of the development of pulsed TIG welding of aluminium is introduced, followed by a description of the main characteristics and finally examples of recent research concerning the improvement of weld quality are introduced.


Author(s):  
Yoshiyuki MIYAMOTO ◽  
Takashi NISHIMURA ◽  
Yoshihiro FUKUHARA ◽  
Yuji KOYAMA ◽  
Kenji NARITA ◽  
...  

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