The 3D Printing of metallic materials is now reaching its maturity for critical and high-end applications. For example, Ariane Group is currently integrating qualified 3D printed metallic components in Ariane 6 launchers. Different 3D printing technologies for ceramics (zirconia, alumina...) have shown significant progress during recent years with the production of small-size demonstrators with complex structures. Significant improvement is still required to ensure stable fabrication and increase the targeted build volume.
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