Design und direkte Steuerung von Additiven Fertigungsverfahren über numerische Modellierung
The interesting feature of additive manufacturing processes is the fabrication of individualized products.
Due to a direct manipulation of the geometry and the material properties on a smaller scale a huge variety of innovative and individualized products can be generated. For instance, in the field of biomedical engineering for each patient an individually and perfectly optimized implant can be fabricated. Additionally, due to 3D printing the cost of individualized implants can be lowered significantly.
To guarantee this optimal individuality in printing processes the precision must by very high. And the influence of the process taking place at a smaller scale on the final product has to be known. Unfortunately, 3D printers of this generation cannot afford such a high precision. To increase the quality of additive manufacturing a detailed knowledge of the whole process is absolutely essential. With computational modelling the whole process can be separated into its individual phases. Knowing the influence of each phase a separate manipulation of each stage can be conducted in order to achieve an optimal result. This knowledge can be integrated in the manufacturing process directly.
Hence computational modelling is the key for additive manufacturing processes of the next generation.
Conventional computational modelling tools are not suited for the simulation of such complex processes. Hence a flexible Finite Element Method which is co-developed at the Institute of Continuum Mechanics is used within such simulations.
Overview current projects:
Process Simulation for Selective Laser Melting
Christian Weißenfels, Peter Wriggers
M.Sc. Henning Wessels
Design and Control of Additive Manufacturing Processes for Medical Silicone
M.Sc. Philipp Hartmann
High Performance Computing of Stereolithography Processes
M.Sc. Sandeep Kumar
Improved Frictional Models for Pile Installations
M.Sc. Ajay Harish