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Resistance Seam Weldability of Polymer-Coated Steel Sheet
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1991 by SAE International in United States
Annotation ability available
Methanol represents one of the most attractive alternative fuels intended to replace gasoline, but it is corrosive to the terne-coated steel sheet traditionally used for automobile fuel components. Application of a methanol-resistant polymer coating on a steel substrate was found to be a viable solution for methanol-resistant fuel tanks. One-sided electrogalvanized sheet was coated on the bare side with a nonconductive and adhesive thermoplastic. The present work studied the weldability of this sheet with the thermoplastic at the faying interface. A systematic parametric study was performed. Welds were evaluated using a set of criteria based on the joint integrity and corrosion resistance. It was found that the coating melted and resolidified in a continuous film adjacent to the welds. The resistance seam-welding operational envelopes were shifted toward lower welding travel speeds and welding currents. It was concluded that the polymer-coated steel sheet can be welded without significant changes in welding equipment and parameters presently used in manufacturing fuel tanks.
CitationAdonyi, Y., Kimchi, M., and McKinney, O., "Resistance Seam Weldability of Polymer-Coated Steel Sheet," SAE Technical Paper 910195, 1991, https://doi.org/10.4271/910195.
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