A Comparative Investigation On Shape Accuracy Of Space Parts Produced By Different L-PBF Processes And AlSi10Mg Powders

Authors:

Emil Strandh (Swerim AB, Sweden),
Cameron Blackwell (MTC, United Kingdom),
Martina Meisnar (ESA, United Kingdom),
Laurent Pambaguian (ESA, Netherlands),
Christian Lockowandt (Swedish Space Corporation, Sweden),
Dominique Daab (Swedish Space Corporation, Sweden),
Irma Heikkilä (Swerim AB, Sweden)

Abstract:

The effect of variability of metal laser powder bed fusion (L-PBF) processes and raw materials for the shape accuracy of the part is a poorly understood area. A suite of designs covering bulky designs of complex shape and delicate fine features were created and manufactured by different machine hardware, process parameters and four AlSi10Mg powders sourced from different suppliers. The designs were relevant for use in space applications. The aim was to evaluate the relationship between the process and powder characteristics for the shape accuracy using a systematic approach for the investigation. The results showed the shape accuracy was clearly connected to the applied process and indirectly to the powder.

DOI:

https://doi.org/10.59499/WP225370222