Title :
Ultrasonic imaging of sheet metal hydroforming-system overview and latest experimental results
Author :
Keitmann-Curdes, Oliver ; Hansen, Christian ; Knoll, Patrick ; Meier, Horst ; Ermert, Helmut
Author_Institution :
Inst. of High Frequency Eng., Ruhr-Univ. Bochum, Germany
Abstract :
The presented imaging system is designed for the use in a high pressure hydroforming process. In this environment, the contour of a sheet metal is to be detected by means of ultrasound. A reconstruction algorithm (synthetic aperture focusing technique, SAFT) was incorporated and first experiments under normal pressure were conducted. With these first experiments, the accuracy of the contour reconstruction from ultrasonic data is less than 0.65% and the mean reconstruction error is 0.28%.
Keywords :
forming processes; sheet metal processing; surface reconstruction; surface topography; ultrasonic imaging; ultrasonic transducers; contour reconstruction; high pressure hydroforming process; sheet metal hydroforming system; synthetic aperture focusing technique; ultrasonic imaging system; Biomedical transducers; Image reconstruction; Optical imaging; Optical transmitters; Pixel; Reconstruction algorithms; Shape; Ultrasonic imaging; Ultrasonic transducer arrays; Ultrasonic transducers;
Conference_Titel :
Ultrasonics, 2003 IEEE Symposium on
Print_ISBN :
0-7803-7922-5
DOI :
10.1109/ULTSYM.2003.1293519
