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GMAWGas Metal Arc Welding
References in periodicals archive ?
The SMAW technique was used for the girth weld in the vintage pipe, which probably introduced higher temperatures, whereas GMAW was used on the girth weld of the modern pipe.
Jiquan, "Numerical analysis of arc plasma behavior in double-wire GMAW," Vacuum, vol.
Thus, in the case of investigated high-strength steel's (HSS) GMAW welded joints, with the nominal strength in the range of 690-890 MPa; there is a significant undermatching of toughness; as well as overmatching of hardness; within heat-affected zone (HAZ).
et al., "Effect of Materials Stack-ups and Microhardness Distribution on Fatigue Performance of DP600 and Boron Steel GMAW Lap Joint," SAE Technical Paper 2007-01-1356, 2007, doi:10.4271/2007-01-1356.
A known phenomenon of GMAW welded high-strength steels is a hardness drop in the HAZ, below 300 HV10 in this particular case.
The current trend is toward the use of semi-automatic and automatic welding processes using FCAW and GMAW, which are about equal in terms of popularity.
"A New Approach for Predicting and Optimizing Weld Bead Geometry in GMAW"--International Journal of Aerospace and Mechanical Engineering, 5: 2.
Welders were trained to repair metal using SMAW, GMAW, and GTAW welding processes.
The methodology comprised four stages: Part (I)--Welding of plates by GMAW, followed by stripping and repassivation; Part (II)--weld bead edge sugaring GMAW, GTAW Dressing and machining; Part (III)--Preparation of samples for immersion corrosion test; Part (IV)--Corrosion Assessment of HAZ by mass loss.
Gas metal arc welding (GMAW) is widespread for plastically deformed or closed parts of the automobile body and is frequently used where the part geometry restricts the application of resistance spot welding (RSW) or when the design requires supplementary joint strength and stiffness.
El proceso de soldadura por arco de metal y gas GMAW (por sus siglas en ingles, Gas Metal Arc Welding) es ampliamente utilizado en la industria mundial debido a su capacidad para soldar a grandes velocidades, altas tasas de deposicion, calidad de las juntas, facilidad para la automatizacion y por ser capaz de soldar un amplio rango de metales.