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EnglishFerromagnetic materials may be affected by the presence of local losses due to defects or magnetic anomalies caused by machining processes. To highlight such anomalies is absolutely not easy; a non invasive thermographic method has been refined to allow a proper comparison of different machining processes impact on the iron losses. Specimens obtained with punching, wire erosion and laser cut have been analyzed by means of a high speed IR camera when subjected to alternate magnetization at different frequencies. The possibility to point out localized anomalies should be exploited to foresee and avoid electrical machines core faults.
A Thermographic Method to Evaluate Different Processes Effects on Magnetic Steels / Poskovic, E.; Ferraris, L.; Bramerdorfer, G.; Cossale, M.. - ELETTRONICO. - (2019), pp. 30-36. ((Intervento presentato al convegno 12th IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2019 tenutosi a Toulouse (fra) nel 2019 [10.1109/DEMPED.2019.8864852].
| Titolo: | A Thermographic Method to Evaluate Different Processes Effects on Magnetic Steels | |
| Autori: | ||
| Data di pubblicazione: | 2019 | |
| Abstract: | Ferromagnetic materials may be affected by the presence of local losses due to defects or magneti...c anomalies caused by machining processes. To highlight such anomalies is absolutely not easy; a non invasive thermographic method has been refined to allow a proper comparison of different machining processes impact on the iron losses. Specimens obtained with punching, wire erosion and laser cut have been analyzed by means of a high speed IR camera when subjected to alternate magnetization at different frequencies. The possibility to point out localized anomalies should be exploited to foresee and avoid electrical machines core faults. | |
| ISBN: | 978-1-7281-1832-1 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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