elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Analysis and development of a brazing method to weld carbon fiber reinforced poly ether ketone ketone (CF/PEKK) with amorphous PEKK

Kotzur, Karola and Doll, Georg and Herrmann, Peter (2019) Analysis and development of a brazing method to weld carbon fiber reinforced poly ether ketone ketone (CF/PEKK) with amorphous PEKK. SAMPE 2019, 18.-20. Sept. 2019, Nantes, Frankreich.

Full text not available from this repository.

Abstract

In this study a brazing method for carbon fiber reinforced poly ether ketone ketone (CF/PEKK) is developed that allows welding below the melting temperature of the single components. Prior to manufacturing of CF/PEKK laminates an amorphous PEKK film is co-moulded to its surface. The CF/PEKK laminates are welded using of an amorphous PEKK foil that acts as filler material. The temperatures for five different brazing processes were defined based on the results of thermal analysis. The welding properties for each process temperature are characterized mechanically and analytically. The crystal morphology of PEKK, which primarily depends on the process temperature, is known for its influence on the mechanical properties. Microanalytical SEM investigations focus on the morphology of the weld zone in order to evaluate diffusion processes at the interfaces. Compared to DSC measurements, the SEM investigations offer a basic understanding of the welded process and its influence on the welding properties. When applying a welding temperature of 60 ◦C below the processing temperature of CF/PPS laminates, a welding factor of 0.93 could be obtained. Furthermore, based on the SEM investigation it is possible to derive more promising improvement measures for the brazing method.

Item URL in elib:https://elib.dlr.de/130708/
Document Type:Conference or Workshop Item (Poster)
Title:Analysis and development of a brazing method to weld carbon fiber reinforced poly ether ketone ketone (CF/PEKK) with amorphous PEKK
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kotzur, Karolakarola.kotzur (at) dlr.deUNSPECIFIED
Doll, GeorgGeorg.Doll (at) dlr.deUNSPECIFIED
Herrmann, PeterPeter.Herrmann (at) dlr.deUNSPECIFIED
Date:2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Thermoplastik CFRP, Bonding, Joining, Aircraft Structures
Event Title:SAMPE 2019
Event Location:Nantes, Frankreich
Event Type:international Conference
Event Dates:18.-20. Sept. 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials
Location: Köln-Porz , Stuttgart
Institutes and Institutions:Institute of Materials Research > Metallic Structures and Hybrid Material Systems
Institute of Structures and Design > Design and Manufacture Technologies
Deposited By: Haubrich, Jan
Deposited On:18 Nov 2019 11:15
Last Modified:18 Nov 2019 11:15

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.