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On the influence of zinc coating and outdoor exposure on the strength of adhesive, clinched, and hybrid joints of batch hot-dip galvanized steel

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Abstract

For decades, it has been common practice to manufacture steel products by welding and then batch hot-dip galvanizing these finished or at least semi-finished components. The joining of such galvanized parts to structures has so far been achieved by means of screws or bolts. With advances in joining and galvanizing technologies, new joining concepts are now conceivable. As part of an extensive testing campaign, joints of small-scale, batch hot-dip galvanized steel specimens were prepared using three joining techniques: adhesive bonding, clinching, and adhesive-clinch hybrid joining. The zinc coating was varied using conventional hot-dip galvanizing as well as thin-film galvanizing with a zinc-5% aluminium alloy. The strength of the joints was investigated by shear tensile testing. Different weathering conditions, achieved by outdoor exposure of samples for over 2 years, were used to investigate such effects on the joint strength.

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Acknowledgements

The authors thank Mr. Thomas Kropp from Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik IWU Dresden, Germany, for carrying out the clinched and hybrid joints and for his technical advice regarding these.

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Authors and Affiliations

  1. ZINQ Technologie GmbH, An den Schleusen 6, 45881, Gelsenkirchen, Germany

    Thomas Pinger

  2. OCAS nv, President J.F. Kennedylaan 3, 9060, Zelzate, Belgium

    Nathalie Van den Bossche

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  1. Thomas Pinger
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  2. Nathalie Van den Bossche
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Correspondence to Thomas Pinger.

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Pinger, T., Van den Bossche, N. On the influence of zinc coating and outdoor exposure on the strength of adhesive, clinched, and hybrid joints of batch hot-dip galvanized steel. Int J Adv Manuf Technol 118, 4031–4042 (2022). https://doi.org/10.1007/s00170-021-08123-x

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  • DOI: https://doi.org/10.1007/s00170-021-08123-x

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