Abstract

The present work is an investigation towards making the spot welding joint\nreliable by improving the quality of a welded joint for a commercially available low carbon\nsteel of BIS 513:2008 standard. The focus is to analyze the microstructure of spot welded\nlow carbon steel using tungsten carbide powder. Tensile shear strength was employed to\ncheck the failure of such joints. The verification was done through the experimentation\nusing optimized combination of levels for parameters. Tensile tests were performed using\ninstron type UTM machines to give accurate results. Finally, an attempt was made to\noutline modes of failure for different sets of experiment and preventing them to strength the\nwelded joint making them reliable. The investigation proved the nature of failure in relation\nwith the microstructure of welded component during the loaded condition.