This study investigates transport phenomena in the weld pool (WP) of gas tungsten arc (GTA) welding of Nickel to 304 stainless steel. A finite element 3D simulation of fluid flow and heat transfer of spot welding without consumable is accomplished which leads to prediction of the weld zone shape, weld penetration and dilution of alloying elements. The model includes magneto-hydrodynamics (MHD),...

Gas tungsten metal arc welding (GTAW) is used to study the effect of base thickness, current and speed on tensile strength hardness mild steel welding. The analysis found that thickness had highest means Taguchi’s design (TD) suggested using higher lower when in order obtain maximum hardness. has showed However, increased proportionally with internal stresses wider heat affected zone (HAZ) incr...

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...