Influence of geometrical parameters of conic pin structures in thermoplastic composite/steel hybrid joining

Influence of geometrical parameters of conic pin structures in thermoplastic composite/steel hybrid joining

Julian Popp, Christoph Zirngibl, Benjamin Schleich, Sandro Wartzack, Dietmar Drummer

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Abstract. Hybrid parts consisting of continuous fiber reinforced thermoplastic (CFRT) and steel components offer promising potential in lightweight construction. In this approach, the joining operation poses the major challenge due to different physical and chemical properties of both materials. This paper studies a joining method in which conical pin structures, protruding from the surface of the metal component, are inserted into the locally heated CFRT component to create a form fitting joint. The aim is to identify and quantify the influence of the parameters pin height and pin head diameter on the mechanical performance in single lab shear and cross head normal experiments. Based on the results it can be shown, that both an increased pin height and head diameter are beneficial under shear load in means of increased maximum load capacity while under normal load only an increased head diameter has clear benefits. Those effects are led back to the geometrical properties and the resulting stress distributions in the joining area.

Composite, Joining, Hybrid Manufacturing

Published online 3/17/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Julian Popp, Christoph Zirngibl, Benjamin Schleich, Sandro Wartzack, Dietmar Drummer, Influence of geometrical parameters of conic pin structures in thermoplastic composite/steel hybrid joining, Materials Research Proceedings, Vol. 25, pp 117-124, 2023


The article was published as article 15 of the book Sheet Metal 2023

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. 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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