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- Title
Ultrasonic Welding of Aluminum Alloys to Fiber Reinforced Polymers.
- Authors
Wagner, Guntram; Balle, Frank; Eifler, Dietmar
- Abstract
To realize multi-material structures, e.g., out of light metals and fiber reinforced polymer (FRP) composites suitable joining methods are required. The ultrasonic metal welding technology was applied to produce high strength joints between different aluminum alloys and carbon fiber reinforced polymers (CFRPs) in the framework of research unit 524 of the German Research Foundation. The bonding mechanisms were characterized by light optical and scanning electron microscopy (SEM). The performed analysis have shown a bonding zone with an intensive contact between the metallic surface and the load bearing carbon fibers of the CFRP as a result of the ultrasonic welding process. Using precipitation hardening aluminum alloy AA2024 tensile shear strengths of up to 58 MPa could be achieved. In comparison to established joining techniques ultrasonic metal welding can be an interesting alternative to realize dissimilar joints for the automotive or aircraft industry.
- Subjects
LIGHT metals; FIBROUS composites; ULTRASONIC metal-cutting; SCANNING electron microscopy; AIRCRAFT industry; ALUMINUM alloys; CARBON fibers
- Publication
Advanced Engineering Materials, 2013, Vol 15, Issue 9, p792
- ISSN
1438-1656
- Publication type
Article
- DOI
10.1002/adem.201300043