This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Basic Phenomena in Resistance Spot Welding
Annotation ability available
Sector:
Language:
English
Abstract
Improvement in resistance spot welding quality in sheet metal do have significant implications on the automotive manufacturing process. This paper reports on our recent effect to gain a fundamental understanding of the weld development process. A simple physical model, based on the dynamic resistance curve is presented describing the resistance changes during the process of weld development. In addition, a series of electrical and metallurgical measurements were performed to capture the temporal behavior of the weld resistance in terms of its component elements. Since the interface resistances are most affected by weld variables such as welding force and electrode cap wear, these interfaces can be major sources of weld quality variation. The results obtained provided a novel yiew of the sheet-metal welding process.
Recommended Content
Authors
Citation
Lee, A. and Nagel, G., "Basic Phenomena in Resistance Spot Welding," SAE Technical Paper 880277, 1988, https://doi.org/10.4271/880277.Also In
References
- Watney Dale Nagel Gregory L. “Forms of Dynamic Resistance Welding Curves Generated during Resistance Spot Welding” Sheet Metal, Conference AWS Dearborn, MI 1984
- Savage W.F. Nippes E.F. Wassell F.A. “Dynamic Contact Resistance of Series Spot Welding,” Welding J., Feb. 1978 43s
- Dickinson D.W. Franklin J.E, Stanya A. “Characterization of Spot Welding Behavior by Dynamic Electrical Parameter Monitoring,” Spot Welding Research Supplement of Welding J. June 1980 170s
- Havens J. R. “Controlling Spot Welding Quality and Expulsion” SME Paper AD78-279 1976
- Burbank G.E. Taylor W.D. “Ultrasonic In-Process Inspection of Spot Welds” Welding Journal May 1965 193s Matting A. Wilkens G. “Testing of Spot Welds” Ultrasonics Oct. 1965 161
- Johnson K.I. “Resistance Welding Quality-Control Techniques” Metal Construction and British Welding Journal May 1973 176
- Stiebel A. Ulmer C Kodrack D. Holmes B.B. “Monitoring and Control of Spot Weld Operations” SAE Paper 860579 1986
- Tabor D. The Hardness of Metals Oxford Press 1951
- Holm R. “Uber Kontaktwiderstande, besonders bei Kohlekontakten” Z. Techn. Phys. 3 1922 290
- Kohlrausch F. “Uber den stationaren Temperaturstand eines elektrich geheizten Leiters” Ann. Phys. 1 1900 132
- Greenwood J.A.D. Williamson J.B.P. “Thermal Transients in Graphite-Copper Contacts” Brit. J. Phys. 11 1960 389
- Oh S. Bryant M.D. “The Transient Temperature Field for two Conducting Bodies Having Different Electric Potentials” Proc. 31st IEEE Holm Conf. Chicage, IL 1985 225
- Dickinson D.W. “Welding in the Automotive Industry” Am. Iron and Steel Inst. Report SG81-5 1981
- Kim Chongmin “Microstructure of Resistance Spot Welded Mild Steel” GMR Research Memo RM# 23-3524 1986