TY - CONF
T1 - Towards high-quality multi-spot-welded joints in thermoplastic composite structures
AU - Zhao, Tian
AU - Palardy, Genevieve
AU - Villegas, Irene F.
AU - Benetictus, Rinze
N1 - Publisher Copyright:
© 2017 International Committee on Composite Materials. All rights reserved.
PY - 2017
Y1 - 2017
N2 - Ultrasonic welding is a promising assembly technique for thermoplastic composites and it is well-suited for spot welding. In this study, two typical welding process control strategies, i.e. displacement-controlled and energy-controlled welding, were selected to manufacture spot-welded joints. The influence of different boundary conditions, provided by different welding jigs, on the welding process and the performance of thus-created welded joints were investigated. The optimum input energy was found dependent on the welding jigs, while the optimum displacement was consistent for achieving the maximum weld strength in both welding jigs. Therefore, displacement-controlled welding showed more potential in producing consistent welds in sequential multi-spot welding.
AB - Ultrasonic welding is a promising assembly technique for thermoplastic composites and it is well-suited for spot welding. In this study, two typical welding process control strategies, i.e. displacement-controlled and energy-controlled welding, were selected to manufacture spot-welded joints. The influence of different boundary conditions, provided by different welding jigs, on the welding process and the performance of thus-created welded joints were investigated. The optimum input energy was found dependent on the welding jigs, while the optimum displacement was consistent for achieving the maximum weld strength in both welding jigs. Therefore, displacement-controlled welding showed more potential in producing consistent welds in sequential multi-spot welding.
KW - Fracture analysis
KW - Mechanical behaviour
KW - Thermoplastic composites
KW - Ultrasonic spot welding
KW - Welding process control
UR - http://www.scopus.com/inward/record.url?scp=85053103982&partnerID=8YFLogxK
M3 - Paper
AN - SCOPUS:85053103982
T2 - 21st International Conference on Composite Materials, ICCM 2017
Y2 - 20 August 2017 through 25 August 2017
ER -