In-situ CT of the clinching process – Influence of settling effects due to process interruptions

In-situ CT of the clinching process – Influence of settling effects due to process interruptions

KÖHLER Daniel, KUPFER Robert, TROSCHITZ Julianec, GUDE Maik

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Abstract. In lightweight constructions, clinching represents a cost-effective solution, in which joints are produced by local cold forming of the joining parts. Clinching phenomena are typically evaluated using destructive testing methods. While these methods influence the clinch point’s state, in-situ computed tomography (in-situ CT) is able to explore the clinching process with a specimen under load. Here, the path-controlled clinching process is interrupted at certain displacement levels and the specimen is scanned by CT while remaining in a stationary state. These interruptions are always accompanied by settling effects reducing the reaction force. Therefore, in this work, the influence of these interruptions on the force-displacement behavior during clinching and on the final clinch point’s geometric properties is investigated.

Keywords
Clinching, Testing, Computed Tomography, In-Situ CT

Published online 4/24/2024, 10 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: KÖHLER Daniel, KUPFER Robert, TROSCHITZ Julianec, GUDE Maik, In-situ CT of the clinching process – Influence of settling effects due to process interruptions, Materials Research Proceedings, Vol. 41, pp 1686-1695, 2024

DOI: https://doi.org/10.21741/9781644903131-187

The article was published as article 187 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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