1. Ultrasonic inspection system for powder metallurgy parts
- Author
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Antoni Turo, András Bulkai, Anna Gironés, Juan A. Chávez, M.J. Garcia-Hernandez, Péter Tomek, Gabor Tóth, Jordi Salazar, Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica, and Universitat Politècnica de Catalunya. GSS - Grup Sistemes Sensors
- Subjects
Signal processing ,0209 industrial biotechnology ,Engineering ,Engineering drawing ,Non-destructive testing ,02 engineering and technology ,Sintered parts ,Automotive engineering ,Porosity ultrasonic inspection ,020901 industrial engineering & automation ,Powder metallurgy ,Eddy-current testing ,Nondestructive testing ,Electrical and Electronic Engineering ,Automotive market ,Aerospace ,Density mapping ,Instrumentation ,Pulverimetal·lúrgia ,business.industry ,Applied Mathematics ,Ultrasonic testing ,Quality control ,Robotics ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Automatic testing ,Tractament del senyal ,Enginyeria de la telecomunicació::Processament del senyal [Àrees temàtiques de la UPC] ,Flaw detection ,Artificial intelligence ,0210 nano-technology ,business ,Quality assurance ,Ultrasonic signal processing - 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.