• Mr P A Dhawale
• Dr B P Ronge

In this paper parametric analysis of multi spot welded cross tension specimen is carried out to investigate the effect of design and process parameters on the tensile strength of spot welded specimen. Further, study is carried out to develop mathematical model by using regression analysis. The design parameters considered are specimen thickness, number of spots and radial spot spacing whereas process parameters are welding force and welding current. As per Taguchi design of experiment approach, five welding parameters with three levels of each are considered for analysis. Experimentation is carried out as per L27 orthogonal array to investigate the effect of welding parameters on tensile strength. Optimum welding parameters are determined by particle swarm optimization (PSO) method. Tests for confirmation have been conducted to validate the results. From the analysis it is observed that maximum tensile strength 2275.49 N is obtained at optimum values, radial distance 8 mm and optimum 6 numbers of spot.

Number of spots, radial spot spacing, Particle swarm optimization, Tensile strength

"Optimization of Resistance Spot Welding for Multi Spot Welded Cross Tension Specimen ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.346-354, May-2019, Available :http://www.jetir.org/papers/JETIR1905H58.pdf

"Optimization of Resistance Spot Welding for Multi Spot Welded Cross Tension Specimen ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp346-354, May-2019, Available at : http://www.jetir.org/papers/JETIR1905H58.pdf