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Unidirectional fiber reinforced tapes as energy director for the ultrasonic welding of thermoplastic composites

Presentation held at SAMPE Europe Conference, 15th-17th September 2015, Amiens, France
: Brecher, Christian; Buschhoff, Clemens; Emonts, Michael

Fulltext urn:nbn:de:0011-n-3897279 (734 KByte PDF)
MD5 Fingerprint: a55a7e2e7386bea501907b77d401a4b5
Created on: 19.10.2016

2015, 8 pp.
Society for the Advancement of Material and Process Engineering (SAMPE Europe Conference) <1, 2015, Amiens>
Presentation, Electronic Publication
Fraunhofer IPT ()

Ultrasonic welding is a very promising technology for the welding of fiber reinforced thermoplastics. The ultrasonic waves are absorbed by the material and melt up the matrix material by molecular and interface friction. Energy directors concentrate the ultrasonic energy and enable a controlled melting of the joining area. But the manufacturing and application of such energy directors on thermoplastic composites is complex and need lot of effort. By using narrow unidirectional fiber reinforced tapes as energy directors on contrary already existing material, machinery and processes can be used.