GDR ALMA Workshop “Metal Alloys by/for Additive Manufacturing”

On October 11, 2023, a workshop organized by the GDR ALMA and dedicated to “powder and wire” feedstocks and “dedicated alloys” for additive manufacturing was held at École des Mines de Saint-Étienne.

Morning program, “powder and wire”:

• 8:45 AM: Welcome

• 9:00 AM-9:15 AM: Introduction (Christophe Desrayaud and Marc Thomas)
• 9:15–9:45 AM: Rémi Giraud (SAMC), Driss Oulahna, and Alain Deryck (Rapsodee Center, École des Mines d’Albi): “Challenges of powder/machine compatibility”
• 9:45–10:15 AM: Elodie Cabrol (LTDS): “Inductive plasma treatment of powders for additive manufacturing”
• 10:15 AM-10:45 AM: Coffee Break
• 10:45–11:15 AM: Timothée Delacroix, Jean-Paul Garandet, and Fernando Lomello (CEA): “Recycling of 316L stainless steel powder in laser powder bed fusion additive manufacturing: analysis, monitoring, and mitigation of powder degradation”
• 11:15–11:45 AM: Frédéric Deschaux-Beaume and Cyril Bordreuil (LMGC Montpellier): “Mechanical properties of austenitic stainless steel products manufactured by WAAM process. Some approaches to optimize wire composition”
• 11:45 AM–12:15 PM: Louise Burot, Gautier Doumenc, Alexandre Benoit, Laurent Couturier, Pascal Paillard (Polytech Nantes): “Mechanical performance of aluminum WAAM parts: from cast parts to parts with high mechanical properties”

Lunch Break

Afternoon program, “dedicated alloys”:

• 1:45–2:15 PM: Yann Le Bouar (Onera-LEM/CNRS), L. Toualbi, F. Fossard, J.-S. Mérot, P. Stricot, S. Fritz, A. Bachelier-Locq, N. Horezan, Q. Barres, M. Tsoutsouva, M. Fèvre, C. Davoine, M. Thomas (Université Paris-Saclay, ONERA, DMAS): “Microstructure and mechanical properties of a laser powder bed fused Al-Fe alloy”
• 2:15–2:45 PM: Melek Genc (THALES Avionics): “Modification of an aluminum alloy for additive manufacturing by L-PBF process. Seeking a compromise between mechanical strength and thermal conductivity”
• 2:45–3:15 PM: Ravi Shahani and Bechir Chehab (Constellium): “Development of aluminum alloys specifically designed for the L-PBF process”
• 3:15 PM-3:45 PM: Coffee Break
• 3:45–4:15 PM: Thierry Baffie and Claudia Salvan (CEA): “CuCrZr alloy processed by laser powder bed fusion: relationship between microstructure and mechanical, thermal, and electrical properties”
• 4:15–4:45 PM: Clément Keller: “Impact of particle size distribution and powder recycling on the mechanical and physical properties of an austenitic steel and nickel-based alloys”
• 4:45 PM-5:00 PM: Conclusion of the Day