Fundamental analysis of the influence of powder characteristics in selective laser melting of molybdenum based on a multi-physical simulation model
Selective Laser Melting of metal powder |
Additive manufactured lattice structures out of molybdenum |
The workpiece is built up by melting up powder layer by layer. Besides the applied laser parameters, the characteristics of the powder and the deposited powder layer have a crucial influence on the dynamics of the process and the final processing result. In order to get a fundamental understanding of these influences, numerical simulations are a versatile tool as they allow a detailed look on isolated parameters.
At the 19th Plansee Seminar Karl-Heinz Leitz presented a coupled thermo-fluid dynamical simulation model for SLM, applied for a fundamental analysis of the influence of powder characteristics in SLM of molybdenum. The results allow a deeper insight into the influences of powder particle size and powder particle arrangement on the SLM process and the formation of the molten track.
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