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- Title
Expulsion monitoring in spot welded advanced high strength automotive steels.
- Authors
Ma, C.; Bhole, S. D.; Chen, D. L.; Lee, A.; Biro, E.; Boudreau, G.
- Abstract
Although there have been a number of investigations on monitoring and controlling the resistance spot welding (RSW) of low carbon galvanised steels, those of advanced high strength steels (AHSS) are limited. A data acquisition system was designed for monitoring weld expulsion via the measurement of voltage, current, electrode force and displacement and the calculation of resistance. The dynamic resistance, electrode force and tip displacement were characterised and correlated with the phenomenon of expulsion during RSW of dual phase (DP) steel using an ac welder. Two control strategies for DP600 spot welding were proposed on the basis of the rate of change in the dynamic resistance and the electrode force.
- Subjects
HIGH strength steel; RESISTANCE heating; ELECTRIC potential; GALVANIZED steel; SOLDER &; soldering; ELECTRIC welding; WELDING
- Publication
Science & Technology of Welding & Joining, 2006, Vol 11, Issue 4, p480
- ISSN
1362-1718
- Publication type
Article
- DOI
10.1179/174329306X120895