Energy Parameters of Weld Formation Process in MIG-MAG Welding

2018 ◽  
Vol 927 ◽  
pp. 99-105 ◽  
Author(s):  
Dmitry A. Chinakhov ◽  
S.A. Solodsky ◽  
P.V. Rodionov ◽  
Volodymyr N. Sydorets
Keyword(s):  
Plasma Flow ◽  
Metal Transfer ◽  
Mag Welding ◽  
Arc Plasma ◽  
Energy Characteristics ◽  
Welding Arc ◽  
Transfer Pattern ◽  
Flow Pressure ◽  
Electrode Metal ◽  
Geometrical Dimensions

The article presents results of an experimental study and simulation of the effect of welding arc energy characteristics on the nature of electrode metal transfer in MIG-MAG welding. Based on the research results, a method has been developed for determining the coefficient of welding arc plasma flow pressure. The method makes it possible to take into account the dependence of the electrode metal transfer pattern and plasma flow pressure on geometrical dimensions of a welded joint.

Study on Fast-Convert Ultrasonic Frequency Pulse TIG Welding Arc Characteristic

2011 ◽  
Vol 704-705 ◽  
pp. 745-751 ◽  
Author(s):  
Bo Jin Qi ◽  
Ming Xuan Yang ◽  
Bao Qiang Cong ◽  
Wei Li
Keyword(s):  
Pulse Current ◽  
Current Level ◽  
Tig Welding ◽  
Ultrasonic Frequency ◽  
Arc Plasma ◽  
Arc Voltage ◽  
Welding Arc ◽  
Huge Impact ◽  
Pulse Peak ◽  
Frequency Pulse

Based on ultrasonic frequency pulse tungsten inert-gas (TIG) welding for 0Cr18Ni9Ti austenitic stainless steel, the influence of pulse level parameters was investigated on the field of arc characteristic and arc force. The experimental results show that the pulse level parameters could have huge impact to arc characteristic and arc force. With the increased frequency of pulse level, arc plasma has a more obvious pinch effect, which causes the enhance of arc voltage. Similarly, the arc force can be improved obviously compared with that during conventional direct current (DC) TIG welding. By contrast, the sensitivity of welding characteristic to pulse current level frequency would reduce while the duty of pulse peak current increased.

FRACTAL ANALYSIS OF METAL TRANSFER IN MIG∕MAG WELDING

2009 ◽  
Author(s):  
A. P. Vieira ◽  
H. H. M. Vasconcelos ◽  
L. L. Gonçalves ◽  
H. C. de Miranda ◽  
Donald O. Thompson ◽  
...  
Keyword(s):  
Fractal Analysis ◽  
Metal Transfer ◽  
Mag Welding

Use of radiative properties to determine temperature and vapours concentration in MAG welding arc (Ar–CO2–Fe plasmas)

2018 ◽  
Vol 51 (41) ◽  
pp. 415202
Author(s):  
Fei Wang ◽  
Y Cressault ◽  
Ph Teulet ◽  
Huan Li ◽  
Ke Yang ◽  
...  
Keyword(s):  
Radiative Properties ◽  
Mag Welding ◽  
Welding Arc

Dependence of Silicon and Manganese Content in the Weld Metal on the Welding Current and Method of Gas Shielding

2015 ◽  
Vol 756 ◽  
pp. 92-96 ◽  
Author(s):  
Dmitry A. Chinakhov
Keyword(s):  
Chemical Composition ◽  
Weld Metal ◽  
Gas Dynamics ◽  
Gas Flow ◽  
Manganese Content ◽  
Welding Current ◽  
Mag Welding ◽  
Different Types ◽  
Considerable Impact ◽  
Electrode Metal

The influence of the welding current and method of gas shielding in MAG welding on the content of silicon and manganese is considered. Results of study of the welded specimens of steels 45 and 30HGSA when applying welding wire of different formulas and different types of gas shielding (traditional shielding and two-jet shielding) are given. It is established that in MAG welding the value of the welding current and the speed of the gas flow from the welding nozzle have a considerable impact on the chemical composition of the weld metal. The consumable electrode welding under double-jet gas shielding provides the directed gas-dynamics in the welding area and enables controlling the electrode metal transfer and the chemical composition of a weld.

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