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Resistance welding of thermoplastics & Joining of hybrid structures

Keck, Rüdiger (2011) Resistance welding of thermoplastics & Joining of hybrid structures. THEPLAC 2011, 23. - 24. Juni 2011, Lecce, Italien.

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Abstract

Adhesive bonding or metal fastening are state-of-the-art joining technologies for the design of continuous fibre reinforced composites (CFRP) structures. On the other hand, adhesive bonding is difficult to process and to monitor, metal fasteners introduce local weakening spots, local delaminations may occur and an optimized load transfer into the laminate is not reachable. Compared to thermoset matrix systems, the molecular constitutions of thermoplas¬tics enable these materials to offer an additional joining method: thermal joining or welding. This is one of the best suitable joining technologies for CFRP, as no fibres are damaged and the matrix systems are linked by first and second order molecular interactions. The experiences gained with the resistance welding, with the focus on using carbon fibre reinforced PolyEtherEtherKetone (CF-PEEK), within the last years will be shown. Another main objective is the realization of hybrid structures, which means the combination of thermoset materials with thermoplastics. Target of the examinations at DLR, Institute of Structures and Design, is the combination of thermoplastic and thermoset parts, using standard manufacturing techniques to generate hybrid components for primary aircraft structures.

Document Type:Conference or Workshop Item (Speech)
Title:Resistance welding of thermoplastics & Joining of hybrid structures
Authors:
AuthorsInstitution or Email of Authors
Keck, RüdigerBK
Date:23 June 2011
Status:Published
Keywords:Hybridfügen, Widerstandsschweißen, Thermoplaste, Fügetechnologien, CF-PEEK, Oberflächen-Vorbehandlung, Thermoplast-Duromer Hybridfügung
Event Title:THEPLAC 2011
Event Location:Lecce, Italien
Event Type:international Conference
Event Dates:23. - 24. Juni 2011
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Computer Supported Component Design
Deposited By: Rüdiger Keck
Deposited On:12 Jan 2012 11:13
Last Modified:12 Jan 2012 11:13

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