| 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 |
Formation of Residual Stresses in Austenitic Stainless Steels by Infeed and Recess Rotary Swaging |
| Author(s) |
Holger Hoche, Fabian Jaeger, Alessandro Franceschi, Matthias Oechsner, Peter Groche |
| On-Site Speaker (Planned) |
Fabian Jaeger |
| Abstract Scope |
The austenitic steels 1.4307 and 1.4404 significantly benefit from cold forming, due to their high work hardening ability. Optimizing the forming process chain could improve the component's fatigue properties in order to induce specific residual stresses in critical component areas. In this work, an analysis of the effects of the process parameters during rotary swaging on the resulting residual stresses is carried out. Through this incremental forming process, high strain hardening and a complex material flow history are induced in the workpieces. Therefore, measuring strategies for the residual stress measurement by XRD were developed. Here, especially the 1.4307 is a challenging material due to cold forming induced martensite. Despite phase change, both cold formed materials exhibit anisotropic microstructures as well as grain coarsening. Moreover, particular notched geometries are produced on the workpieces by rotary swaging. Measuring techniques are further developed for these complex geometries and the residual stresses are investigated. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |