Welding technology is one of the fastest growing opportunities in the field of manufacturing engineering. Today, many construction, erection, ship building and body building works are not possible without welding. Although welding technology has many positive features, there are some negative features which are to be taken under consideration of this work. Many risks and accidents could be avoided, if the negative features of welding technology have been rectified. Many people involving in

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... ng works are not able to identify the exact loading and boundary conditions for the corresponding weld, which is to be created by using design of experiment (DOE). So that, improper welding as well as lack of knowledge about the necessary welding parameters, has led to many accidents. This paper deals with the analytical response approaches of lap joint weld with respect to the minimum and maximum loading parameters. In order to identify the boundary condition of mechanical parameters with respect to the weld which is to be created. Hence the products which are designed the suggested load and dimensional specifications would follow the mechanical parameters which are obtained analytically by using ANSYS in order to avoid the percentage of risk and accidents in future. Aiding an improvement in the performance of work for the growth in future, for the betterment of people welfare and the environment in our society. Keywords Response surface methodology, Design of experiment, Spot welding, Lab joint, Finite element analysis.