A discussion on the Parameters of the Resistance Spot Welding Process and their Influences on the Quality of the Welded Joint Using Analysis and Design of Experiments

• Main Authors: de Souza Maia, Graziela Fernanda, de Oliveira e Souza, Marcelo Lopes, de Brito, Alírio Cavalcanti
• Format: Report
• Language: English
• ISSN: 0148-7191; 2688-3627
• DOI: 10.4271/2020-36-0180

Resistance Spot Welding is a manufacturing process widely used in several industrial segments, such as automotive, electronics, aerospace and others. It stands out from other welding processes, as it does not require addition material to join parts. This type of process needs to be robust and reliable in order to ensure the quality of the welded joint produced, as any variation in the quality of the weld point can affect the functionality and safety of the final product. The resistance spot welding process uses different technologies and operating sequences that depend on various characteristics, factors and parameters. The combinations and values of these allow for numerous possibilities, making their adjustments time-consuming, costly and exhaustive, so it is necessary to apply statistical techniques to optimize the process. In the literature, it is possible to find several statistical techniques for the optimization of the process. Thus, this article presents a discussion on the parameters of the resistance spot welding process and their influences on the quality of the welded joint using analysis and design of experiments. This includes: 1) which parameters must be considered, through 2) a search in the literature covering various applications of this welding process; and 3) the different response variables commonly found in the industry to evaluate this type of process. Based on all this, it is expected to show: 1) the most significant parameters in that welding process; 2) the interactions between the most effective parameters in the welding process and how they occur, and 3) evaluate the different response variables used to ensure the quality of the welded joint.