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Proceedings Paper

In-process detection of weld defects using laser-based ultrasound
Author(s): Stephen W. Kercel; Roger A. Kisner; Marvin B. Klein; Gerald David Bacher; Bruno F. Pouet
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Paper Abstract

Laser-based ultrasonic (LBU) measurement shows great promise for on-line monitoring of weld quality in tailor-welded blanks. Tailor-welded blanks are steel blanks made from plates of differing thicknesses and/or properties butt- welded together, they are used in automobile manufacturing to produce body, frame, and closure panels. LBU uses a pulsed laser to generate the ultrasound and a continuous wave laser interferometer to detect the ultrasound at the point of interrogation to perform ultrasonic inspection. LBU enables in-process measurements since there is no sensor contact or near-contact with the workpiece.

Paper Details

Date Published: 8 December 1999
PDF: 12 pages
Proc. SPIE 3852, Harsh Environment Sensors II, (8 December 1999); doi: 10.1117/12.372829
Show Author Affiliations
Stephen W. Kercel, Oak Ridge National Lab. (United States)
Roger A. Kisner, Oak Ridge National Lab. (United States)
Marvin B. Klein, Lasson Technologies, Inc. (United States)
Gerald David Bacher, Lasson Technologies, Inc. (United States)
Bruno F. Pouet, Lasson Technologies, Inc. (United States)


Published in SPIE Proceedings Vol. 3852:
Harsh Environment Sensors II
Anbo Wang, Editor(s)

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