ForschungMedizintechnik
Simulation of the laser metal deposition process using meshfree methods

Simulation of the laser metal deposition process using meshfree methods

Jahr:  2020
Förderung:  Lower Saxony Ministry for Science and Culture
Supervisor:Prof. Dr.-Ing. habil. Dr. h.c. mult. Dr.-Ing. E.h. Peter Wriggers
Co-Supervisor:Dr.-Ing. Christian Weißenfels
Projekt ID:9
Location:  Leibniz Universität Hannover, Institut für Kontinuumsmechanik (IKM)

Motivation 

Additive manufacturing has great potential for the realization of end products with optimized geometry and tailored material properties. The laser metal deposition process (LMD process) is an excellent option for depositing high-precision materials at various locations and is therefore a suitable process for the production of multi-materials. However, the uncertain quality of the final additively manufactured component has so far been a major obstacle for the industrial application of Additive Manufacturing

Objectives 

While experimental in-situ characterization of the Additive Manufacturing Process is virtually impossible, numerical modeling can help to understand and optimize the Additive Manufacturing Process. For numerical simulation, mesh-free solution methods are particularly suitable, which directly map the melting of materials.

Accordingly, the aim of the PhD project is to determine the relationship between material supply and material distribution after melting in the laser metal deposition process by means of numerical simulation. On the basis of prior results, both the material models and net-free methods are to be further developed in order to accurately simulate the LMD process and to keep the computing time short.    

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