In-Process Ultrasonic Nondestructive Evaluation
Ultrasonic waves have great potential for use in in-process nondestructive evaluation. First, the ultrasonic wave velocity and attenuation may give important information on material property changes during processing. Second, they may give indirect information on other process parameters, for example, temperature or pressure. And third, ultrasonic waves may be used on-line for inspection of part quality. Measurements of the process parameters and material properties make possible the control of process variables to achieve the required material properties1.
KeywordsInterface Wave Ultrasonic Wave Spot Weld Lamb Wave Ultrasonic Signal
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- 1.R. Mehrabian and M. N. G. Wadley, Needs for process control in advanc processing of materials, J. of Metals Feb:51 (1985).Google Scholar
- 2.S. I. Rokhlin, R. J. Mayhan, and L. Adler, On-line ultrasonic Lamb wave monitoring of spot welds, Mater. Eval. 43:879 (1985).Google Scholar
- 5.L. C. Lynnworth and E. P. Papadakis, eds., “Measurement of Elasitc Moduli of Materials at Elevated Temperature,” Report AD780231 for the Office of Naval Research, Panametrics, Inc., Waltham, MA (197Google Scholar
- 6.B. K. Bentley, J. A. Greenwood, P. McKnowlson, and R. G. Baker, Tempe ture distributions in spot welds, Brit. Weld. J. 10:613 (1963).Google Scholar
- 7.J. E. Gould and P. H. Chang, Thermal modeling of spot welds, J. Metal May:39 (1986).Google Scholar
- 12.R. K. Elsley, W. J. Pardee, M. J. Buckley, F. Cohen-Tenoudji, K. W. Ferting, “Advanced concepts in the control of autoclave cure of composites” , in: “Review of Progress in Quantitative Nondestructi Evaluation,” vol. 5B, D. O. Thompson and D. E. Chimenti, eds., Plenum, New York (1986).Google Scholar
- 13.S. I. Rokhlin, Characterization of composite and adhesive cure by ultrasonic waves, these Proceedings.Google Scholar