Abstract—This experimental study is based on an investigation of the effect and optimization of welding parameters on the tensile shear strength in the Resistance Spot Welding (RSW) process. The experimental studies were conducted under varying electrode forces, welding currents, and welding times. The settings of welding parameters were determined by using the Taguchi experimental design of L18 Orthogonal array method. The combination of the optimum welding parameters have determined by using the analysis of Signal-to-Noise (S/N) ratio. The confirmation test performed clearly shows that it is possible to increase the tensile shear strength of the joint by the combination of the suitable welding parameters. Hence, the experimental results confirmed the validity of the used Taguchi method for enhancing the welding performance and optimizing the welding parameters in resistance spot welding operations.

Index Terms—Resistance Spot Welding (RSW), Tensile shear strength, Taguchi method, S/N ratio, Optimization

Cite: Manoj Raut and Vishal Achwal, "Optimization of Spot Welding Process Parameters for Maximum Tensile Strength," International Journal of Mechanical Engineering and Robotics Research, Vol.3, No.4, pp. 506-517, October 2014.