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MECHANICAL CHARACTERISATION OF IN-SITU BONDING BETWEEN PEEK FILAMENTS AND LAMINATES IN THE FFF PROCESS

Hümbert, Simon and Schmidt, Isabelle and Atzler, Fynn and Lengowski, Michael (2022) MECHANICAL CHARACTERISATION OF IN-SITU BONDING BETWEEN PEEK FILAMENTS AND LAMINATES IN THE FFF PROCESS. 20th European Conference on Composite Materials, 2022-06-26 - 2022-06-30, Lausanne, Switzerland. doi: 10.5075/epfl-298799_978-2-9701614-0-0. ISBN 978-2-9701614-0-0. ISSN 978-2-9701614-0-0.

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Abstract

Fused filament fabrication (FFF) of high-temperature, aerospace-grade thermoplastics like PEEK has made significant progress in recent years and has become an established process for 3D-printing of complex parts. However, possibilities of adding long or continuous fibres are still limited and the introduced thermal stresses limit the maximum part dimensions. To overcome these limitations, this work investigates the potential of bonding FFF printed parts in-situ onto continuous fibre reinforced laminates. This process allows the combination of the complexity of 3D-printing with large scale manufacturing processes for high-performance structures. The investigation is divided in two steps. Firstly, the effect of process temperatures on the inter-layer bonding of printed PEEK is investigated. On this basis, the optimal process parameters for the bonding of printed PEEK onto PEEK laminates are analysed. The results show a strong correlation between the process temperatures and the inter-layer bonding as well as the bonding between filament and laminates. The process influences shown form the basis for future hybrid component and process designs.

Item URL in elib:https://elib.dlr.de/195079/
Document Type:Conference or Workshop Item (Speech)
Title:MECHANICAL CHARACTERISATION OF IN-SITU BONDING BETWEEN PEEK FILAMENTS AND LAMINATES IN THE FFF PROCESS
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Hümbert, SimonUNSPECIFIEDhttps://orcid.org/0000-0003-1476-8427147715177
Schmidt, IsabelleUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Atzler, FynnUNSPECIFIEDhttps://orcid.org/0009-0000-7234-3828147715178
Lengowski, MichaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI:10.5075/epfl-298799_978-2-9701614-0-0
Page Range:pp. 350-357
ISSN:978-2-9701614-0-0
ISBN:978-2-9701614-0-0
Status:Published
Keywords:Fused Filament Fabrication; thermoplastic composites; in-situ bonding; PEEK; 3D-printing
Event Title:20th European Conference on Composite Materials
Event Location:Lausanne, Switzerland
Event Type:international Conference
Event Start Date:26 June 2022
Event End Date:30 June 2022
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Structural Materials and Design
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Design and Manufacture Technologies
Deposited By: Hümbert, Simon
Deposited On:12 May 2023 10:18
Last Modified:24 Apr 2024 20:55

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