Authors:
Alexander Holzer (1), Peter Nahringbauer (1), Lukas Stark (1), Christian Gierl Mayer (1)
1- TU Wien, Institute of Chemical Technologies and Analytics, Austria
Abstract:
Due to the strong dependency on powder supplier, additive manufacturing is restricted to a small range of materials and connected to big orders. Competitive and profitable production often requires serial production and therefore small products. The powder preparation, starting by producing the desired material composition, allows to design customized powder specialised for each additive application. In our case, ultrasonic atomization realizes batch-wise material research and prevents waste of material. In this work, opportunities and difficulties of the wire-fed ultrasonic atomization process is discussed. The main focus are stainless steels, e.g. 316L and variants, for lithography-based metal manufacturing. Furthermore, the powder characterisation, the tools for adjusting the powder atomization and first steps of additive manufacturing are presented. Results show that ultrasonic atomization provides narrow powder size distribution, almost perfect rounded powder without any satellites.
DOI:
https://doi.org/10.59499/EP246279391
