As we strive to reduce the overall weight of cars to improve fuel efficiency; more parts are being manufactured from Aluminium alloys where traditionally ferrous forgings have been used. One case in point is steering arms. Because we are using light alloys it is vital that these parts are critically inspected as the failure of such a component would cause a serious accident. The parts are loaded into the X ray machine which first uses a CCD camera to read the serial number on the part. This is used as a file number for the storage of subsequent images of that part. The part is moved to a number of sequential viewing positions automatically by the control system, at each position the Kv and mA is adjusted to the programmed values. The image is analysed by the F.A.R.I.S. software and the customers selected sentencing criteria are applied to determine the quality of the part. The part is then ejected from the machine and a new part is simultaneously loaded into the machine for the next inspection to take place. The F.A.R.I.S. software can be used as a simple real time analysis tool or can be programmed to make decisions about defect types, positions, clusters and combinations and to quantify these as each part is radiographed. Using fully automatic inspection increases the number of parts tested per hour and more importantly, it removes the subjective human error which is inherent in visual inspection systems. The quality of the inspection can be absolutely reproduced and manufacturing processes can be improved by using the data produced by the automatic inspection as a quality indicator.
Fully automatic radiographic inspection of automotive parts
Vollautomatische radiographische Prüfung an Automobilteilen
2005
4 Seiten, 9 Bilder
(nicht paginiert)
Conference paper
Storage medium
English
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