| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Process Development for Mechanical Joining of Aluminum Alloys and Thermoplastics Using High-frequency Preheating |
| Author(s) |
Stephan Lüder, Thoralf Gerstmann, Birgit Awiszus, Christian Koch, Henning Wiche, Volker Wesling, Eva Stolz, Ralf Pilgrim |
| On-Site Speaker (Planned) |
Stephan Lüder |
| Abstract Scope |
The paper deals with the development of a process combination of preheating and joining by forming of aluminum alloys and thermoplastics without any complementary joining elements. Although the hydrostatic pressure prevailing in flat-clinching has a positive effect on the forming behavior of brittle materials, it is necessary to preheat the thermoplastics. This avoids mechanical and thermal damage of the thermoplastics and maximizes the joint strength and reproducibility. The presented approach uses high-frequency heating to generate a defined temperature profile in the thermoplastics. The process development of preheating and mechanical joining is based on numerical simulations. For this purpose, thermal and mechanical characteristics (e.g., heat capacity, thermal conductivity, and flow curves) of the aluminum alloys and the thermoplastics were determined in experimental tests and subsequently implemented in the simulation model. The simulations are calibrated based on experimental tests. Finally, the tools and process parameters are optimized for joint strength. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |