Parameters for cladding using plasma transfer arc welding –A critical

Abstract

Arc welding is a type of welding in which there is an electric arc formed joining the base material and the electrode, as well as metals are melted at the welding spot with the help of a welding power source. Arc welding is commonly used because of its low capital and operational costs. Due to cost concerns, it is typically not viable to fabricate components from solid high alloyed materials. As a result, non-alloyed or low-alloy base materials must be encased with high-alloy cladding. In high-tech welding technique processes, Strip electrodes are used to apply welded deposits over large surface areas.The most important contribution of this article is to optimize plasma arc welding process parameters for dissimilar metal welding and other quality factors such as bead shape, microstructure, hardness, ferrite measurement, and tensile test.Due to its exceptional features, low dispersion, and high coatings efficacy, Welding with plasma transmitted arc (PTAW) is a broadly applied overlay coating method. The impacts of transferred welding current, welding travel speed, powder flow rate, welding oscillation speed, and stand-off distance on weld bead form parameters such as width of deposition and reinforcing are given and examined using experimental data and a developed model. Reduced current (100–120 A), intermediate travel speed (120–140 mm/min), intermediate powder feed rate (12–14 g/min), oscillation speed (450–550 mm/min), and stand-off distance (6–8 mm) would result in superior deposition characteristics with less distortion, residual stresses, and no surface defects.