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Experimental testing and FEM Simulation of Resistance Spot Welding Process for the assessment of the electrode degradation.

keywords FEM SIMULATION, RESISTANCE SPOT WELDING, PROCESS M

Reference persons MANUELA DE MADDIS, PASQUALE RUSSO SPENA

Thesis type THEORETICAL/PRACTICAL

Description Resistance spot welding is a joining technique widely employed in the automotive assembly lines. In this process, the electrode state is an important factor to achieve reliable welds. As the number of welds increases, the electrodes deteriorate over time by leading to a non-compliant quality of the weld spots. The quantitative assessment of the electrode degradation would allow to correctly schedule when the electrode needs to be replaced or redressed by keeping high performance of the welding process. This can be done through data-driven models that make the machine able to learn by itself when the maintenance intervention must occur. However, this requires a huge amount of experiments that are expensive and time-consuming. For this reason, data can be also computer-generated by means of simulations that virtually investigate the electrode degradation in different process conditions. The aim of this MSc thesis is to set up a Finite Element model to assess the electrode degradation in resistance spot welding in order to generate data to be used in Machine Learning algorithms and predict the electrode degradation during welding.

Required skills FEM modelling. Mechanical Engineering / Automotive Engineering / Mechatronics Engineering.

Notes Tirocino 6 crediti presso centro interdipartimentale J -Tech + tesi


Deadline 25/02/2023      PROPONI LA TUA CANDIDATURA




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