On-line Quality Estimation in Resistance Spot Welding

[+] Author and Article Information
Wei Li, S. Jack Hu, Jun Ni

Department of Mechanical Engineering and Applied Mechanics, The University of Michigan, Ann Arbor, MI 48109

J. Manuf. Sci. Eng 122(3), 511-512 (Dec 01, 1999) (2 pages) doi:10.1115/1.1286814 History: Received May 01, 1998; Revised December 01, 1999
Copyright © 2000 by ASME
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Stiebel, A., Ulmer, C., Kodrack, D., and Holmes, B., 1986, “Monitoring and Control of Spot Weld Operations,” SAE Technical Paper, No. 860579, International Congress and Exposition, Detroit, Michigan.
Auto/Steel Partnership, 1995, Weld Quality Test Method Manual, Standardized Test Method Task Force.
Takuma,  M., Shinke,  N., and Motono,  H., 1996, “Evaluation of Function of Spot-Welded Joint using Ultrasonic Inspection,” Trans. Jpn. Soc. Mech. Eng., Part A, 62, No. 595, pp. 776–780.
Li,  W., Hu,  S. J., and Ni,  J., 1999, “On-Line Expulsion Detection and Estimation for Resistance Spot Welding,” Trans. NAMRI/SME,XXVII, pp. 123–128.


Grahic Jump Location
A schematic drawing of a spot welding process
Grahic Jump Location
The signals during welding: (a) displacement and force; (b) dynamic resistance



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