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TECHNICAL PAPERS

Laser Array/EMAT Ultrasonic Measurement of the Penetration Depth in a Liquid Weld Pool

[+] Author and Article Information
G. M. Graham

Milliken Research Corporation, 920 Milliken Road, M-405, Spartanburg, South Carolina 29303 e-mail: george_graham@milliken.com

I. Charles Ume

S. N. Hopko

Georgia Institute of Technology, Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405

J. Manuf. Sci. Eng 122(1), 70-75 (Mar 01, 1998) (6 pages) doi:10.1115/1.538910 History: Received November 01, 1997; Revised March 01, 1998
Copyright © 2000 by ASME
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References

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Yang, J., Sanderson, T., Graham, G., and Ume, C., 1994, “Ultrasonic Weld Penetration Depth Sensing with Laser Phased Array,” ASME International Mechanical Engineering Conference and Exposition, Chicago, IL., Nov. 14–18, PED-Vol. 68-1, pp. 245–254.

Figures

Grahic Jump Location
Experimental setup for penetration depth measurement in simulated liquid welds
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Configuration for sensing weld penetration depth
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Temperature profiles of plates while measuring transmitted ultrasound
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Penetration versus time-of-flight for air filled v-groove
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Ultrasound transmitted through glycerin-filled groove at 21°C with s=25 mm
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Penetration depth versus time-of-flight without offset for s=25 mm
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Penetration depth versus time-of-flight without offset for s=50 mm

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