Investigations on the process combination of DED-LB/M and forming (ME 2043/110-1)
Third party funded individual grant
Acronym: ME 2043/110-1
Start date : 01.12.2023
End date : 30.11.2025
Project details
Short description
Within the project "Investigations on the process combination of DED-LB/M and forming", a fundamental process understanding for the production of components through the combination of forming technology and laser-based directed energy deposition (DED-LB/M) is to be developed in cooperation with the Institute of Photonic Technologies. The aim is also to produce tailored component properties using this combination of processes. To this end, the influences of the strain hardening introduced by the forming stage and the heat input resulting from the additive process in alternating production on the component properties are being investigated. The system combination consisting of a hydraulic press and DED-LB/M cell connected by a 5-axis robot is used for realization.
Scientific Abstract
The primary aim of the research project is to develop a fundamental understanding of the process combination of DED-LB/M and forming with alternating application of the two steps. This can be used for future research to produce tailored components using DED-LB/M and forming. Due to the novelty of this approach, the project content relates to process control and, in particular, to the analysis of thermal and mechanical interactions in the application of the two manufacturing processes. One aim is to quantify the influences of different process strategies on the material properties as well as the temperature fields and profiles in DED-LB/M. In addition, the influence of the combination of the two processes on work hardening and mechanical properties will be analyzed. Based on this, the extent to which the strain hardening introduced during forming can be influenced by recovery or recrystallization during DED-LB/M will be investigated. In addition, the aim is to determine the relationships between the mechanical properties of the as-built test specimen, the formability and the resulting geometric component properties, also in alternating process sequences. This should generate a deep understanding of the forming behavior of structures manufactured using DED-LB/M, which can be used for the design of the combined production chain.
