Results 41 to 50 of about 6,855 (214)
The objective of this work was the development of a methodology to parametrize wire + arc additive manufacturing (WAAM), aiming dimension repeatability, and tolerances. Parametrization of WAAM is a difficult task, because multiple parameters are involved
Shubham Dahat +3 more
doaj +1 more source
Optimization of Source-Wire-Gas Systems for Efficient Robot Welding [PDF]
GMAW (Gas-Metal-Arc-Welding) as the last of main technologies, yet based for a most part on manual (semiautomatic) work, is gradually automated. But traditional advances of weld design, technology and quality assurance is not essentially changing.
Hudec Zdenek
doaj +1 more source
In gas metal arc welding (GMAW), the weld bead shape is an important factor that is directly related to the weld quality of welded joints. This study investigates the effects of process parameters, including welding speed (WS) and leading and trailing ...
Gwang-Gook Kim +5 more
doaj +1 more source
INVESTIGATION OF GMAW BY SIMULATION MODELLING
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 +4 more sources
The microstructure of the Inconel 625 single layer weld cladding deposited by the conventional GMAW and GMAW with rotating electrode (GMAW-RE) processes on carbon steel is investigated.
J. F. M. Costa +5 more
semanticscholar +1 more source
Fatigue Lifetime Assessment of HFMI‐Treated Welded Joints According to the Peak Stress Method
ABSTRACT High‐frequency mechanical impact (HFMI) is an effective post‐weld treatment that enhances fatigue strength by inducing compressive residual stresses, localized strain hardening, and increasing weld toe radii. The peak stress method (PSM) was recently extended to evaluate the fatigue strength of HFMI‐treated steel joints under uniaxial loading ...
Alberto Campagnolo +2 more
wiley +1 more source
In this study, gas metal arc welding (GMAW) was used to construct a thin wall structure in a layer-by-layer fashion using an AWS ER70S-6 electrode wire with the help of a robot.
Ali Waqas +4 more
doaj +1 more source
Buckling resistance and residual stresses of welded HSS box columns
Abstract Welded box columns made of high‐strength steels (HSS) are characterized by high buckling resistance and low self‐weight. The residual stresses introduced by the welding process are of particular importance. In the area of the weld seams, the cooling process creates residual tensile stresses that are in equilibrium with the compression stresses
Richard Stroetmann +4 more
wiley +1 more source
Effect of heat input on dilution rate and corrosion performance in CWW GMAW of AH36 steel
In order to explore the influence of different welding heat inputs on the dilution rate and corrosion performance of marine steel welds, this study conducts a comparative analysis of weld formation, weld dilution rate, microstructure, composition ...
Yang Zhidong +6 more
doaj +1 more source
The utilization of direct energy deposition (DED)‐arc additive manufacturing processes in industrial applications is increasing, and these processes have the potential for multi‐material applications. This work provides a overview of the state of research in DED‐arc made functional graded structures, to establish a link to potential industrial ...
Kai Treutler, Volker Wesling
wiley +1 more source

