Device for automatically measuring the residual stresses in the

Details Device for automatically measuring the residual stresses in the Device for automatically measuring the residual stresses in the

1993-01-29

1994-09-27

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

73624, G01N 2904

Patent

active

053498615

ABSTRACT:
The wheel rests upon a rail. A chassis mounted on a lifting and supporting mechanism carries slides arranged on either side of the rail and parallel to the rail. Two carriages are mounted to move translationally on the slides. Grinding devices, an ultrasound checking device and two position detectors are mounted on the carriages to move translationally in a direction perpendicular to the slides. The propagation time for the ultrasound in the rim is measured in two perpendicular directions and the width of the rim is measured. The propagation speeds of the ultrasound are calculated and compared so as to determine the stressed state of the rim.

REFERENCES:
patent: 3596503 (1971-08-01), Gay
patent: 3978712 (1976-09-01), Cowan

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