EXPERIMENTAL INVESTIGATIONS FOR MECHANICAL AND METALLURGICAL PROPERTIES OF DISSIMILAR MATERIALS WELDED JOINT MADE BY RESISTANCE SEAM WELDING USING SINGLE COVER PLATE by Manish Vijan
Abstract
Resistance seam welding is one of the established processes for joining of similar or dissimilar materials mainly metals. In last decade many applications in the field of resistance seam welding have been highlighted. But less work has been reported on the properties of resistance seam welded joints of dissimilar stainless steel/aluminum alloy materials. In the present work an attempt has been made to perform resistance seam welding for dissimilar materials with the aid of cover plate The present study of resistance seam welding for dissimilar materials was performed by considering three input parameters i.e. welding current, welding time and hydraulic pressure to perform welding. Investigations were performed to check the influence of process parameters on mechanical and metallurgical properties i.e. tensile strength, Vickers micro hardness, SEM, EDX and porosity at joint. The process parameters were optimized using Minitab software based on Taguchi L9 orthogonal array and results are supported by photomicrography.
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