Therefore, the choice of process and welding parameters is fundamental to the quality of the coating [9]. In application where corrosion and wear resistance are required, most common used welding process, in weld overlay, are FCAW, GMAW, GTAW, PAW, ESW e SMAW. The use of welding processes...
Consider- ing the similar gas property, the surface tension of the liquid metal is similar and the difference of Fγ is not distinguishable. According to Eqs. (4) and (5), Femv in Figure 8(b) is larger than that in Figure 8(a). However, Figure 8 Schematic illustration of...
(a measure of distance between pairs of pixels in the region of interest), correlation (a measure of the linear dependency of gray levels of neighboring pixels), and homogeneity (Inverse Difference Moment which is very large for a smaller gray tone) can be the potential features to detect ...
“arc break transfer”. In laser–arc hybrid welding, the laser-induced plasma alters the conductive path and forces acting on the molten droplet [16]. In laser–arc hybrid welding, pulse-induced laser [17,18] and the phase difference between the two wires in dual-wire P-GMAW [19] also...
Arc characteristics in alternating magnetic field assisted narrow gap pulsed GTAW. J. Mater. Process. Technol. 2018, 254, 254–264. [Google Scholar] [CrossRef] Jian, X.; Wu, H. Influence of the Longitudinal Magnetic Field on the Formation of the Bead in Narrow Gap Gas Tungsten Arc ...
According to the test monitoring and image processing, the paper analysed a novel waveform control method of ultrasonic frequency on GTAW-P, and revealed its distinctive properties, compared with the conventional pulsed GMAW, UFP possessed the characters as below. ...
GTAW is used more often for weld experiments owing to the fact that with a non-consumable electrode a much more stable process is the result. By contrast, the GMAW exhibits a greater dynamic during the process. The carried-out experiments are mainly performed in laboratory environment and ...
The oscillation phenomenon in the GMAW welding process was similar to that of the GTAW. The front part of the weld pool in the S-GMAW welding process was subjected to the “surface impact” from the electric explosion, and the whole weld pool oscillated in a swaying mode. The difference ...
The oscillation phenomenon in the GMAW welding process was similar to that of the GTAW. The front part of the weld pool in the S-GMAW welding process was subjected to the “surface impact” from the electric explosion, and the whole weld pool oscillated in a swaying mode. The difference ...