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Repair of endless fibre-reinforced thermoplastics using LASER-based techniques

Keck, Rüdiger and Kaden, Markus (2011) Repair of endless fibre-reinforced thermoplastics using LASER-based techniques. Shaker Verlag. 3rd International Workshop on Aircraft System Technologies - AST 2011, Hamburg. ISBN 978-3-8322-9904-0

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The challenges of mechanical machining fibre reinforced thermoplastics like delamination, fibre tearing, rapid tool wear and, though, heat affection are well known. Nevertheless, the relevance of CFRPs in the industrial community is still increasing. To accomplish general acceptance, it must been shown that repair is possible to the points of failures or defective areas without big expenses; and, if possible, without significant impact on mechanical properties. Due to the advantages regarding reshaping or welding, new methods for machining and treatment as well as for consolidation are needed to close the technological gap. For several steps of the repairing process, repair concepts for endless fibre reinforced thermoplastic parts and structures have to be adapted or developed, like the removal and scarfing out of the damaged area or the fusion of patch and laminate within a suitable melting process. This presentation describes the implementation of a laser system based treatment of endless fibre reinforced thermoplastic laminates whose mechanical properties had been compromised by an external damage. In addition, an opportunity to ensure the joining between the patch and the defective laminate by melting will be presented.

Item URL in elib:https://elib.dlr.de/72431/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Repair of endless fibre-reinforced thermoplastics using LASER-based techniques
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Date:1 April 2011
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 433-442
Von Estorff, OttoTUHH
Thielecke, FrankTUHH
Publisher:Shaker Verlag
Keywords:Reworking, Rework, Thermoplaste, CF-PEEK, UD-Tape, Reparaturverfahren, Restfestigkeit, LASER, Laserbearbeitung
Event Title:3rd International Workshop on Aircraft System Technologies - AST 2011
Event Location:Hamburg
Event Type:international Conference
Organizer:Technische Universität Hamburg-Harburg
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Computer Supported Component Design
Deposited By: Keck, Rüdiger
Deposited On:28 Dec 2011 20:52
Last Modified:28 Dec 2011 20:52

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