PowLa


Förderkennzeichen: MF140147
Projektlaufzeit: 01.02.2015 bis 31.03.2017

Determination of the powder influence on selective laser beam melting

The task is to determine the influence of powder properties on the process of selective laser beam melting and the resulting properties of the generated components. By investigating the correlation between chemical and structural powder properties, powders are to be qualified that are not yet suitable for laser beam melting processes. The aim of these investigations is to improve process reliability and reproducibility as well as to increase the performance and efficiency of the process. The focus will be on gas- and water-atomized metallic materials.

For the investigation of the powder influence on the process control of the laser beam melting process and the properties of the components generated from it, the following focal points are defined:

  • Characterization of the chemical, physical and technological powder properties depending on the manufacturing process
  • Modification of the new powders with regard to grain fraction/mixing of the grain fraction
  • Optimization of the powder and material dependent process parameters of the laser beam melting process
  • Characterization of the resulting properties and determination of the relationship between powder properties and technological properties

A systematic comparison of gas- and water-atomized metallic powder materials is to be carried out, as these materials differ fundamentally from each other in their properties. Based on the results obtained, a more economical planning and execution of the SLM process is possible. Lower costs are expected as a result of optimized powder production processes with the same component properties. In addition, powder characterization supports a reproducible and reliable process.

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