Laser-ultrasonic detection of subsurface defects in...

Details Laser-ultrasonic detection of subsurface defects in... Laser-ultrasonic detection of subsurface defects in...

2007-10-09

2007-10-09

Kwok, Helen (Department: 2856)

Measuring and testing

Vibration

By mechanical waves

C073S598000

Reexamination Certificate

active

11242969

ABSTRACT:
Subsurface defects in a processed metal are detected by a laser-ultrasonic method involving generation of a surface acoustic wave at one location on the processed metal surface, and detection of a scattered acoustic wave at another location on the processed metal surface. The method can be used in-line to provide real time monitoring of laser cladding and other metal processing operations.

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