EFFECT OF PROCESS PARAMETERS ON DILUTION IN CLADDING OF STAINLESS STEEL ON MILD STEEL PLATE DEPOSITED BY GMAW

Abstract

The corrosion resistant property and mechanical strength of cladded stainless steel is completely depends on the clad bead geometry which can be obtained by the controlled parameters. Hence, the aim of this work was to examine the effect of process parameters on stainless steel cladding deposited by GMAW and also the micro-structural changes at the interface and corrosion resistance behaviour were studied. Cladding is the process of depositing any corrosive resistant material over the base metal, to achieve the corrosion free surface in order to get the higher economical and longevity output. In this paper the analysis of result was done by design of experiment (DOE) method using L4 orthogonal array, followed by S/N ratio, main effect plots and interaction plots to analyze the effect of process parameters on dilution. This experimentation reveals that welding current and voltage significantly affect the dilution and also the dilution increases on increasing welding current and voltage. The result obtained from the experiments was analyzed using MINITAB 14.