Development, optimisation and qualification of welding additive manufacturing procedures to date have largely been undertaken on an experimental trial error basis, which imposes significant costs. Numerical simulations are acknowledged as a promising alternative experiments, can improve the understanding complex process behaviour. In present work, we propose simulation-based approach study char...

Most of the metal additive manufacturing technologies are focused on high cost and high end applications. There is in need, a low cost additive manufacturing technology suitable for low and high end metallic applications. Robotic automated welding can be considered as an alternative to manufactured large scale metal parts with layer by layer approach. However, many obstacles have to be overcome...

Abstract Tungsten inert gas (TIG) welding is frequently used to fabricate super duplex stainless steel weldments due its superior mechanical qualities and attractive appearance in contrast with other arc techniques. The broad use of TIG remains constrained despite all advantages. Thus, the process activated flux tungsten (A-TIG) created. In current study, ATIG different oxide fluxes execute bea...

In mechanized or automatic GMAW welding, when necessary, weaving is usually performed by mechanical devices. On the other hand, magnetic fields are commonly used for same purpose in GTA welding. Experiments were carried out using with short-circuit, and pulsed metal transfer which controlled oscillation was applied. A clear influence of imposed field on process stability observed, its effect as...

CO2 gas shielded arc welding, which is widely used in the industrial world, has been recognized as an efficient and economical GMA welding process. However, it’s characteristic repelled transfer produces a large amount of spatter results costly cleanup and, thus, practical methods to overcome this weakness have highly demanded. In study, ‘Pulsed Gas MAG’ was proposed new approach reducing spatt...