Friction Stir Welding and Friction Spot Stir Welding Processes of Polymers-State of the Art

In the last decade, the friction stir welding of polymers has been increasingly investigated by the means of more and more sophisticated approaches. Since the early studies, which were aimed at proving the feasibility of the process for polymers and identifying suitable processing windows, great imp...

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Bibliographic Details
Published in:Materials 2020-05, Vol.13 (10), p.2291
Main Authors: Lambiase, Francesco, Derazkola, Aghajani, Simchi, Abdolreza
Format: Article
Language:English
Subjects:
Adhesive bonding
Bond strength
Composite materials
Curing
Environmental impact
Friction stir welding
Mechanical properties
Metals
Plastics
Polymers
Process parameters
Quality assessment
Review
Shear strength
Solvents
Vehicles
Welded joints
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Summary:In the last decade, the friction stir welding of polymers has been increasingly investigated by the means of more and more sophisticated approaches. Since the early studies, which were aimed at proving the feasibility of the process for polymers and identifying suitable processing windows, great improvements have been achieved. This owes to the increasing care of academic researchers and industrial demands. These improvements have their roots in the promising results from pioneer studies; however, they are also the fruits of the adoption of more comprehensive approaches and the multidisciplinary analyses of results. The introduction of instrumented machines has enabled the online measurement of processing loads and temperature, and critical understanding of the principal aspects affecting the material flow and welds quality. Such improvements are also clearly demonstrated by the increase of the strength of recent joints (up to 99% of joining efficiency) as compared to those reached in early researches (almost 47%). This article provides a comprehensive review of the recent progresses on the process fundamentals, quality assessment and the influence of process parameters on the mechanical behavior. In addition, emphasis is given to new developments and future perspectives.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma13102291