Influence of Welding Parameters on Bead Geometry in Stainless Steel Cladding using Submerged Arc Welding Process

Weld cladding is being employed increasingly in process & power industries because of its high reliability weld cladding in increasingly employed to enhance the life of engineering component that have to work under highly corrosive environment. The bead geometry is an important considerable in cladding operation which is influenced by direct and indirect welding parameters eg. Bead width governs the number of passes required to sweep the entire surface area in a particular cladding situation height of reinforcement governs the amount of metal built up. The effect of welding parameter on bead geometry of 12 mm thick mild steel plates (SA-516 Grade 60) used for fabrication of boilers and pressure vessels were cladded in flat position with Stainless steel ADOR make auto melt 309L wire as the filler & ADOR made S33 granular flux using SAW process. In present work, the influence of welding parameters on bead geometry and dilution in stainless steel cladding has been investigated. Mathematical models were developed from the data generated using two level fraction factorial design. Eight combinations & two set of responses parameters are designed with different combinations of (SAW) welding parameters. The effect of selected welding parameters [welding current(I), open circuit voltage(V), welding speed(S) & nozzle to plate distance (N)] on the dilution and bead geometry [penetration(P), bead width(W), reinforcement(R)] have been investigated. The effect of welding parameters on response parameters has