Automated system for laser ultrasonic sensing of weld penetration

Mechatronics

Volumn 7, Issue 8, 1997, Pages 711-721

  Graham, George M ^a   Ume, I Charles ^b  

^a Milliken Research Corporation   (United States)

^b GEORGIA INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AUTOMATION; COMPUTER SIMULATION; LASER APPLICATIONS; ONLINE SYSTEMS; ROBOTICS; SPATIAL VARIABLES MEASUREMENT; ULTRASONIC TRANSDUCERS; WELDING;

ELECTROMAGNETIC ACOUSTIC TRANSDUCER; ROBOTIC WELDING; WELD PENETRATION DEPTH MEASUREMENT;

COMPUTER CONTROL SYSTEMS;

EID: 0031381859     PISSN: 09574158     EISSN: None     Source Type: Journal    
DOI: 10.1016/s0957-4158(97)00031-7     Document Type: Article

References (27)

1. Choi, M. S. and Yang, M. S., Quality evaluation and control of end cap welds in PHWR fuel elements by ultrasonic examination. Journal of Nuclear Materials, 1991, 178, 321-327.
2. Popov, V. A., et al., Assessment of process incomplete fusion . . . . Russian Ultrasonics, 1988, 18(5), 287-291.
3. Whitehurst, J. D., Ultrasonic weld inspection - some pitfalls. Transactions of the Institution of Professional Engineers New Zealand, Electrical/Mechanical/ Chemical Engineering Section, 1988, 15(1), 49-52.
4. Fenn, R., Monitoring and controlling welding by ultrasonic means. British Journal of NDT, 1989, 31(2), 82-86.
5. Carlson, N. M. and Johnson, J. A., Ultrasonic sensing of weld pool penetration. Welding Journal, 1988, 67(11), 239s-246s.
6. Carlson, N. M., et al., Ultrasonic NDT methods for weld sensing. Materials Evaluation, 1992, 1338-1343.
7. Lott, L. A., Johnson, J. A. and Smartt, H. B., Real-time ultrasonic sensing of arc welding processes. Proceedings, Symposium on NDE Applications and Materials Processing, 1983, American Society for Metals Processing, Metals Park, OH, 13-22.
8. White, R., Generation of elastic waves of transient surface heating. Journal of Applied Physics, 1963, 34, 3559.
9. Scruby, C. B. and Drain, L. E., Laser Ultrasonics: Techniques and Applications, Adam Hilger Press, 262-268, 1990.
10. Aussel, J. D., Le Brun, A. and Baboux, J. C., Generation acoustic waves by laser: theoretical and experimental study of the emission source. Ultrasonics, 1988, 24, 246-255.
11. Jarzynski, J. and Berthelot, Y. H., The use of optical fibers to enhance the laser generation of ultrasonic waves. Journal of the Acoustical Society of America, 1989, 85(1), 158-162.
12. Ing, R. K., Gires, F. and Fink, M., Focusing and Beamsteering of Laser Generated Ultrasound, IEEE-1989 Ultrasonics Symposium, 539-544, 1989.
13. Ing, R. K., Fink, M. and Gires, F., Directivity patterns of a moving thermoacoustic source in solid media. IEEE Transactions, 1991.
14. Carlson, N. M., et al., Ultrasonic NDT methods for weld sensing. Materials Evaluation, 1992, 1338-1343.
15. Scruby, C. B., op. cit, p. 243.
16. DeRidder, N., Analysis of non-contact laser-fiber optic array for generation of ultrasound. M.S. thesis, Georgia Institute of Technology, Atlanta, GA.
17. Graham, G., Yang, J. and Ume, C., Laser ultrasound directivity in CS-3 ceramic. Materials Evaluation, 1994, 52(5), 607-610.
18. Umeagukwu, C., et al., Study of the directivity patterns of laser-optical fiber generated ultrasound. Invited Paper 121st Meeting of the ASA, 1991, 89(4), pt. 2.
19. Umeagukwu, C., et al., Laser Phased Array Generation of Ultrasound with Application to On-Line Nondestructive Weld Quality Control. NSF Design and Manufacturing Systems Grantees Conference, University of Texas, Austin, TX, 1996.
20. Yang, J. S., Graham, G., Timmerman, M., Ume, C. and Jarzynski, J., Optical Fiber Phased Array Generation of Ultrasound for No-Destructive Evaluation of Ceramics Materials. Proceedings of the VII International Congress on Experimental Mechanics, 766-772, 1992.
21. Yang, J., Graham, G., Ume, C. and Jarzynski, J., Laser phased array generated ultrasound for nondestructive evaluation of ceramic materials. Submitted to Journal of NDE.
22. Yang, J., DeRidder, N., Ume, C. and Jarzynski, J., Noncontact optical fiber phased array generation of ultrasound for nondestructive evaluation of materials and processes. Ultrasonics, 1993, 31(6), 387-394.
23. Yang, J. S. and Ume, C., Performance evaluation of fiber array for NDE application. Research in Nondestructive Evaluation, 1993.
24. Yang, J. S. and Ume, C., Optical Fiber Phased Array Generation of Ultrasound for Process Control. Proceedings of Joint US-Taiwan Symposium on Advanced Manufacturing Processes, pp. 331-350. Atlanta, Georgia, 1993.
25. Graham, G. M. and Ume, C. I., Laser-Optical Fiber Bundle Generation of Ultrasound for Process Improvement. ASNT Fall Conference.
26. Graham, G. M., Sanderson, T. M. and Ume, C., Intelligent Welding with Laser Ultrasonic Sensing. Invited paper, The First World congress on Intelligent Manufacturing, Mayaguez, Puerto Rico.
27. Graham, G. M. and Ume, C., Laser Array Generated Ultrasound for Weld Quality Control. The 4th International Conference on Trends in Welding Research, Gatlinburg, TN.