Resistance Spot Welding with Nickel Plated Electrode caps
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 7
Abstract
Resistance spot welding has established itself across a wide range of industries as a cost-effective method for welding. One of the problems of Resistance Spot Welding is the lifetime of welding electrode tips which affects the quality of the welds formed. An innovative way to prevent the electrode wear is to plate the surface of the electrode with suitable material. The material chosen in this study is Nickel. Plating of this materials is inexpensive and easily available. The increase in resistance due to plating the electrodes is measured. Nickel is plated on the surface with varying thicknesses separately and their effect on ultimate load, shear stress and nugget diameter is observed by varying welding current and keeping the weld time and welding pressure constant. It is investigated from the study that Ni plating with 25 microns thickness requires less current to weld spots of higher strengths compared to non plated electrodes. This is due to increase in resistance of the weld system due to plating which requires less current as resistance of the weld system is increased.
Authors and Affiliations
Prajakta Patil, Yogita Potdar, Gundu Maranholkar, Veena Badiger
Keywords
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