On the Thermal and Electrical Characteristics of the Hybrid Plasma-MIG Welding Process

2017 ◽  
Vol 906 ◽  
pp. 63-71 ◽  
Author(s):  
Volodymyr Sydorets ◽  
V. Korzhyk ◽  
V. Khaskin ◽  
O. Babych ◽  
O. Berdnikova

The theoretical analysis of the influence of the plasma discharge temperature with non-consumable electrode on the melting of the electrode wire was carried out. The dynamics of the melting of the electrode wire and dynamics of circuit with consumable electrode arc were been investigation. The estimation of maximum values of the temperature of plasma have been made. Influence of the MIG process on the volt-ampere characteristics of the plasma discharge have been studied. These results were used for carrying out the technological experiments.

2017 ◽  
Vol 872 ◽  
pp. 61-66
Author(s):  
Volodymyr Sydorets ◽  
Volodymyr Korzhyk ◽  
Oleksandr Babych

In many respects, the advantages of the hybrid welding process Plasma-MIG are explained by the interaction of the arc discharges, which make up it: a plasma discharge and an arc with a consumable electrode (MIG). Knowledge and understanding of the laws of this interaction is very important for the implementation of the process and obtaining good results. The theoretical analysis of the influence of the plasma discharge temperature with non-consumable electrode on the melting of the electrode wire was carried out. The dynamics of the melting of the electrode wire and dynamics of circuit with consumable electrode arc were been investigation. Estimates of the maximum value of the temperature of plasma discharge have been made. These results were used to select welding modes and for carrying out the technological experiments.


2017 ◽  
Vol 20 (5) ◽  
pp. 1174-1178 ◽  
Author(s):  
Constantino Natividad ◽  
Rafael García ◽  
Victor H. López ◽  
Antonio Contreras ◽  
Melchor Salazar

2020 ◽  
Vol 38 (2) ◽  
pp. 44s-48s
Author(s):  
Shinichi TASHIRO ◽  
Atsuhito AOKI ◽  
Hideaki KUROAWA ◽  
Manabu TANAKA

2018 ◽  
Vol 14 (1) ◽  
pp. 118-127 ◽  
Author(s):  
Emad Kh. Hamd ◽  
Abbas Sh. Alwan ◽  
Ihsan Khalaf Irthiea

In the present study, MIG welding is carried out on low carbon steel type (AISI 1015) by using electrode ER308L of 1.5mm diameter with direct current straight polarity (DCSP). The joint geometry is of a single V-butt joint with one pass welding stroke for different plate thicknesses of 6, 8, and 10 mm. In welding experiments, AISI 1015 plates with dimensions of 200×100mm and edge angle of 60o from both sides are utilized. In this work, three main parameters related to MIG welding process are investigated, which are welding current, welding speed, heat input and plate thickness, and to achieve that three groups of plates are employed each one consists of three plates. The results indicate that increasing the weld heat input (through changing the current and voltage) leads to an increase in widmanstatten ferrite (WF), acicular ferrite (AF) and polygonal ferrite (PF) in FZ region, and a reduction in grain size. It is observed that the micro-hardness of welded AISI 1015 plate increases as the weld heat input decreases. As well as increasing the weld heat input results in an increase in the width of WM and HAZ and a reduction in the impact energy of the weld joint of AISI 1015 at WM region. Also, it is noted the corrosion rate of weld joint increases with increase of Icorr due to increasing in welding current (heat input), corrosion rate increased up to (0.126µm/yr.) with increasing of heat input up to (1.27 KJ/mm).  


2006 ◽  
Vol 35 (11-12) ◽  
pp. 1166-1190 ◽  
Author(s):  
J. P. Ganjigatti ◽  
D. K. Pratihar ◽  
A. RoyChoudhury

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