Title
Parallel Welding of Thermoplastic Composites Using Continuous Ultrasonic Welding
Author
Westerveld, Timo (TU Delft Aerospace Engineering)
Contributor
Villegas, I.F. (mentor) 
Jongbloed, B.C.P. (mentor)
Degree granting institution
Delft University of Technology
Programme
Aerospace Engineering
Date
2024-05-08
Abstract
The effect of creating parallel welds in a single overlap using continuous ultrasonic welding on the weld quality has been investigated, with the goal of creating three high-quality parallel welds. To achieve this, multiple aspects were examined to understand the creation of high-quality parallel welds. The weld quality is highly influenced by a change in boundary conditions. The number of welds, the order of welding, and the energy director strategy all change the boundary conditions. Increasing the number of parallel welds will make it more difficult to create high-quality welds. The order of welding has a large effect on the quality of the welds. The order of welding will determine if a low- or high-quality weld is created with constant welding parameters. Two energy director strategies were compared: a ‘full overlap energy director’ and ‘energy director strips’. Both can create high-quality welds, but energy director strips create an overall better-quality weld.
Subject
Continuous ultrasonic welding
Thermoplastic Composite Manufacturing
Ultrasonic welding
carbon fiber
Parallel welding
Composites
To reference this document use:
http://resolver.tudelft.nl/uuid:765392c0-f0cc-435b-9741-06d8f0f1e9fa
Embargo date
2026-05-31
Part of collection
Student theses
Document type
master thesis
Rights
© 2024 Timo Westerveld