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Nondestructive quality inspection, process monitoring and adaptation of joint properties in friction stir welding

 
: Straß, Benjamin; Conrad, Christian; Wolter, Bernd; Thomä, Marco; Wagner, Guntram

Ben Attar, Amarilys (Organising Committee):
5th International Conference on Scientific and Technical Advances on Friction Stir Welding and Processing, FSWP 2017 : 11.-13.10.2017, Metz
Metz, 2017
2 S.
International Conference on Scientific and Technical Advances on Friction Stir Welding and Processing (FSWP) <5, 2017, Metz>
Deutsche Forschungsgemeinschaft DFG
Joining by plastic deformation;
Englisch
Konferenzbeitrag
Fraunhofer IZFP ()
friction stir welding (FSW); monitoring; in-process inspection; ultrasound enhancement; USE-FSW; NDT

Abstract
As the industrial use of Friction Stir Welding (FSW) is steadily increasing, appropriate nondestructive testing (NDT) methods have to be identified allowing the reliable detection of existent nonconformities in the weld during a post-process inspection. Moreover, there is a strong need for process monitoring and control by in-process NDT methods. Ideally the emerging formation of a defect has to be detected in such an early state during welding that corrective actions can be implemented and a proper weld quality still can be ensured. Different approaches to inspect the joint quality in post-process testing as well as by in-process monitoring, for example using the MonStir® method, will be presented. Additionally an innovative process variant, called Ultrasound Enhanced Friction Stir Welding (USE-FSW) and its potential to improve the microstructural and mechanical properties of joints will be described in detail.

: http://publica.fraunhofer.de/dokumente/N-474353.html