Investigation on the inter-ply friction when deforming magnesium-based fibre metal laminates at elevated temperature
Zheng Liu, Enrico Simonetto, Andrea Ghiotti, Stefania Bruschi
download PDFAbstract. Inter-ply friction plays a dominant role in inducing defects (e.g., wrinkling) during the hot stamping process of fibre metal laminates (FMLs). In particular, the metal/prepreg inter-ply friction is highly affected by the process parameters at elevated temperature as the molten matrix is significantly sensitive to possible changes in these parameters. In this paper, the metal/prepreg inter-ply friction was experimentally investigated at increasing relative sliding displacement and varying normal pressure. To do that, pull-through tests with a stop-start control strategy were conducted at elevated temperature. The obtained results showed the transition of the lubrication mode given by the Stribeck theory from a hydrodynamic to a mixed one as the relative sliding displacement rose at whatever normal pressure level. An increase in the inter-ply friction coefficient was found as well.
Keywords
Friction, Hot Stamping, Fibre Metal Laminates
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: Zheng Liu, Enrico Simonetto, Andrea Ghiotti, Stefania Bruschi, Investigation on the inter-ply friction when deforming magnesium-based fibre metal laminates at elevated temperature, Materials Research Proceedings, Vol. 25, pp 463-470, 2023
DOI: https://doi.org/10.21741/9781644902417-57
The article was published as article 57 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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