Results 21 to 30 of about 10,829 (227)
An evaluation of weld metal nitrogen retention and properties in 316NL austenitic stainless steel [PDF]
, 2011 A series of tests were conducted using varying levels of nitrogen and helium in a conventional argon shielding gas when welding 316LN austenitic stainless steel. The outcome was that a 15 per cent nitrogen addition to the argon shielding gas had the most
Baker, Thomas +2 more
core +1 more source
Hot Forging of a Cladded Component by Automated GMAW Process [PDF]
, 2010 Weld cladding is employed to improve the service life of engineering components by increasing corrosion and wear resistance and reducing the cost. The acceptable multi-bead cladding layer depends on single bead geometry.
BIGOT, Régis +2 more
core +6 more sources
COMPUTER ANALYSIS OF THE GMAW AND GMAW-CW WELDING THERMAL CYCLES
Revista de Engenharia Térmica, 2015 A novel process of welding GMAW-CW (Gas Metal Arc Welding-Cold Wire) had been developed with it resemblance to the GMAW (Gas Metal Arc Welding), the GMAW-CW has an additional wire fed into de weld pool, allowing better deposition rates, while maintaining weld characteristics.
E. A. M. Mendonça +5 more
openaire +2 more sources
INVESTIGATION OF GMAW BY SIMULATION MODELLING
ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, 2021 The thermal and deformation cycle during welding is directly reflected on the formation of the welded joint and the imperfections that can occur in any specific case. The simulation modelling of the heating and cooling processes makes it possible to determine the temporary and residual stresses in the welded joint.
openaire +3 more sources
Arc pressure and weld metal fluid flow whilst using alternating shielding gases Part 1 : arc pressure measurement [PDF]
, 2013 As part of an ongoing process to fully evaluate the effects of an alternating shielding gas supply on gas shielded welding processes, a comparison between the arc pressures generated using argon, helium, alternating shielding gases and pulsed GTAW has ...
Campbell, Stuart +2 more
core +1 more source
Applications and benefits of adaptive pulsed GMAW
Mechanics, 2013 The aim of this study was to investigate adaptive pulsed GMAW processes, considering possible benefits when welding thicker sections (> 3 mm) and structural steel. Adaptive pulsed GMAW processes are adaptive in that electrode feed speed is automatically adjusted and corrected to the mean pulsed current or voltage variation. In addition, current and
Mvola Belinga +3 more
openaire +1 more source
Welded Joints' Heat Affected Zone's Extension Prediction by Switching Welding Parameters [PDF]
Materials Research, 2017 Choosing welding parameters is an important step in welding process, directly influencing in the heat input provided to welded joints. This heat input value, along with temperature distribution in welded joints, provides, to the drafter, conditions of ...
Leonardo Gadelha Tumajan Costa de Melo +5 more
doaj +2 more sources
Metals, 2019 Residual stresses can affect both the static strength and the fatigue endurance of welded joints. Residual stresses can be assessed by numerical simulation; however, the simulation of the welding process is a complex task that requires knowledge of ...
Andrea Chiocca +2 more
doaj +1 more source
Assessing carbon dioxide emission reduction potentials of improved manufacturing processes using multiregional input output frameworks [PDF]
, 2016 Evaluating innovative process technologies has become highly important within the last decades. As standard tools different Life Cycle Assessment methods have been established, which are continuously improved.
Burger, Mia +10 more
core +1 more source
Arc pressure and weld metal fluid flow whilst using alternating shielding gases Part 2 : arc force determination [PDF]
, 2013 The transient variation of the shielding gas present in the alternating shielding gas process produces a dynamic action within the liquid weld metal. Flow vectors opposite in direction have been reported due to the various forces acting on the weld metal
Campbell, Stuart +2 more
core +1 more source