This thesis examines the impact of air gap size in synchronous electric motors, considering the manufacturing design and dimensional tolerances required. A larger air gap is constrained by magnetic resistance and motor efficiency, while a smaller air gap is limited by the rotor and stator shapes. To assess the quality of the production process, stators and rotors were measured using a coordinate measuring machine based on the specified tolerances in the workshop drawings. Statistical methods were employed to evaluate the production process quality. The measured values are presented using Gaussian distribution graphs and control charts. Besides tolerance analysis, the choice of ferromagnetic material is crucial, as different alloys can increase or decrease magnetic resistance. The analysis revealed that the measured values were higher than expected, indicating that the stator turning process is not satisfactory managed.
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