Ultrasonic inspection system for powder metallurgy parts |
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Authors: | Antoni Turó Juan A Chávez Miguel J García-Hernández András Bulkai Péter Tomek Gabor Tóth Anna Gironés Jordi Salazar |
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Affiliation: | 1. Grup Sistemes Sensors, Universitat Politècnica de Catalunya, Jordi Girona 1-3, Mòdul C4, Campus Nord UPC, 08034 Barcelona, Spain1;2. MFKK Invention and Research Centre Services Co. Ltd., Tétényi út 93, 1119 Budapest, Hungary2;3. CTM Centre Tecnològic, Av. Bases de Manresa 1, 08242 Manresa, Spain3 |
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Abstract: | The demand for powder metallurgy (P/M) parts in its traditional automotive market is predicted to grow, but future sector expansion depends directly upon its capability to manufacture zero-defect parts for industries such as aerospace and medicine. The lack of adequate inspection systems has important implications from the point of view of quality assurance, since it increases the costs, time and wasted material. In recent years the applicability of several techniques for the inspection of P/M parts has been investigated, such as Eddy current testing, computer tomography or X-ray imaging, but studies have revealed that all of them have deficiencies that make them unavailable for a complete and reliable flaw detection and density defect recognition. A new inspection tool has been developed based on pulse echo ultrasonic technology combined with robotics, which makes it possible to provide a global density map of sintered. |
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Keywords: | Non-destructive testing Automatic testing Quality control Sintered parts Flaw detection Density mapping Porosity ultrasonic inspection Ultrasonic signal processing |
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