In this master’s thesis, the optimization of the ultrasonic welding process of particle boards is addressed using the design of experiments methodology. The aim of the research was to determine the influence of selected process parameters on joint quality and identify their optimal values to meet customer requirements. The theoretical part presents the ultrasonic welding process and the fundamentals of the design of experiments as a tool for process optimization. The methodology includes a description of the materials and equipment used, as well as the procedure for conducting the experimental work. The key steps of the design of experiments are presented, including problem definition, identification of objectives and influencing factors, experimental design, execution, and analysis of results. Based on the obtained data, regression models were developed to evaluate the influence of process parameters on the responses. In the concluding part, optimization criteria were defined, optimal process parameters were selected, and a confirmation experiment was carried out. The results confirm the effectiveness of the applied methodology for optimizing the ultrasonic welding process of particle boards and show that, with appropriate process parameters, it is possible to improve joint quality and achieve results that exceed initial expectations while meeting the required criteria.
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