Publication

Abstract : Surfacing techniques are developed to impart desirable properties like corrosion and wear resistance to low cost substrates like low carbon steels. Weld surfacing is capable of processing prefabricated and worn-out components. The various welding parameters influence the heat input, bead geometry and occurrence of weld defects. This paper briefly looks into various methods adapted to model, regulate and control weld surfacing techniques. The knowledge on effects of welding process parameters, percentage of overlap, inter-pass temperature, pulse characteristics, oscillation methods and control techniques is helpful to tailor the properties of the deposits. This review is mainly focused on selected welding techniques that can be readily and economically adopted for surfacing process.