Strengthening Thin Hot-Stamped Components Through the Integration of Fiber-Reinforced Plastic Structures

authored by: Bernd Arno Behrens, Sven Hübner, Philipp Müller, Timo Fünfkirchler, Lorenz Albracht, Jörn Wehmeyer, Denis Fink, Klaus Dilger, Sven Hartwig, Christian Gundlach
Abstract: The automotive industry holds great promise for multi-material structures in achieving lightweight design, efficient body construction and enhanced functionality. These structures capitalize on the favorable mechanical properties and reduced weight of such combinations, especially when metal and plastic are integrated to create a synergistic effect. This research paper outlines the advancement of a hot-stamp and an extrusion tool to facilitate a thermally assisted extrusion process. This process enables the seamless joining of GMT (Glass Mat reinforced Thermoplastics) and 22MnB5 steel without the need for additional bonding agents. In the initial step of the process, a hot-stamping tool is utilized to fabricate cap profile components. Afterwards a combined extrusion and joining process of the GMT takes place. Through adhesion, the GMT material bonds to the rough surface of the AlSi-coated 22MnB5, enabling the removal of the final component. The influence of process parameters was assessed through static and dynamic tests conducted on demonstrator components. Overall, it was determined that the introduction of a GMT stiffening structure leads to improvements in both the static and dynamic properties of the component so a reduction of the steel thickness of the structure can be carried out. This reduction in thickness is accompanied by a decrease in the mass of the test structure, while maintaining or even enhancing its static and dynamic properties. Further weight savings are possible through additional component and process optimization.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
External Organisation(s): Technische Universität Braunschweig
Type: Conference contribution
Pages: 337-343
No. of pages: 7
Publication date: 2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Mechanical Engineering, Mechanics of Materials, Metals and Alloys
Electronic version(s): https://doi.org/10.33313/512/b0501 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{578810a6ff384b43b14960b709851849,
title = "Strengthening Thin Hot-Stamped Components Through the Integration of Fiber-Reinforced Plastic Structures",
abstract = "The automotive industry holds great promise for multi-material structures in achieving lightweight design, efficient body construction and enhanced functionality. These structures capitalize on the favorable mechanical properties and reduced weight of such combinations, especially when metal and plastic are integrated to create a synergistic effect. This research paper outlines the advancement of a hot-stamp and an extrusion tool to facilitate a thermally assisted extrusion process. This process enables the seamless joining of GMT (Glass Mat reinforced Thermoplastics) and 22MnB5 steel without the need for additional bonding agents. In the initial step of the process, a hot-stamping tool is utilized to fabricate cap profile components. Afterwards a combined extrusion and joining process of the GMT takes place. Through adhesion, the GMT material bonds to the rough surface of the AlSi-coated 22MnB5, enabling the removal of the final component. The influence of process parameters was assessed through static and dynamic tests conducted on demonstrator components. Overall, it was determined that the introduction of a GMT stiffening structure leads to improvements in both the static and dynamic properties of the component so a reduction of the steel thickness of the structure can be carried out. This reduction in thickness is accompanied by a decrease in the mass of the test structure, while maintaining or even enhancing its static and dynamic properties. Further weight savings are possible through additional component and process optimization.",
author = "Behrens, {Bernd Arno} and Sven H{\"u}bner and Philipp M{\"u}ller and Timo F{\"u}nfkirchler and Lorenz Albracht and J{\"o}rn Wehmeyer and Denis Fink and Klaus Dilger and Sven Hartwig and Christian Gundlach",
note = "Publisher Copyright: {\textcopyright} CHS2 2024 . All rights reserved.; 9th International Conference on Hot Sheet Metal Forming of High-Performance Steel, CHS2 2024 ; Conference date: 27-05-2024 Through 29-05-2024",
year = "2024",
doi = "10.33313/512/b0501",
language = "English",
pages = "337--343",
editor = "Daniel Casellas and Jens Hardell",
booktitle = "9th International Conference on Hot Sheet Metal Forming of High-Performance Steel, CHS2 2024 - Proceedings",
publisher = "Association for Iron and Steel Technology, AISTECH",
}