Ultrasonic testing of welds in wheels

Details Ultrasonic testing of welds in wheels Ultrasonic testing of welds in wheels

G - Physics

01

N

349/44

G01N 29/04 (2006.01) G01N 29/11 (2006.01) G01N 29/38 (2006.01) G01N 29/44 (2006.01)

Patent

CA 1122693

ABSTRACT OF THE DISCLOSURE Methods and means for testing and storing data relating to the quality of resistance spot welds in an automotive wheel are provided. The wheel may be rotated for one revolution or less, dependent upon the number of transducers used, while a counter generates pulse signals representative of the locations of the wheel as it is revolved. Ultrasonic signals are trans- mitted towards and received from locations in the wheel at which the presence of welds is being tested. Storage devices, responsive to signals from the counter and the received ultrasonic signals store counts representative of the locations on the wheel where acceptable welds start and end to thereby determine the diameters of the welds. me data stored also indicate locations and durations of voids in the welded areas.

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