Previous studies have systematically investigated densification in ring-shaped parts. Additionally, the effect of filling parameters on filling and green density was explored, demonstrating the strong influence of the die cavity on the origin of inhomogeneous powder distribution. A uniform density is mandatory for industrial production, so further investigation is necessary, also including the contribution of powder transfer. This work aims at investigating the effect of powder transfer on the density distribution and the geometrical precision in 2-level axi-symmetric parts. Sample geometry was compacted by varying: the filling parameters, powder transfer strategies, and compaction forces. Reference samples were produced by excluding the powder transfer step from the compaction cycle. Green and sintered density distribution were derived, highlighting the effect of filling, powder transfer, and compaction strategies.

Influence Of Powder Transfer On Density Distribution And Geometrical Precision In Multilevel Axi-Symmetric Parts / Zago, Marco; Rambelli, Alex; Foschi, Davide; Cristofolini, Ilaria. - (2023). (Intervento presentato al convegno PM 2023 tenutosi a Lisbon, Portugal nel 1st-4th October 2023) [10.59499/EP235764659].

Influence Of Powder Transfer On Density Distribution And Geometrical Precision In Multilevel Axi-Symmetric Parts

Zago, Marco
Primo
;
Cristofolini, Ilaria
Ultimo
2023-01-01

Abstract

Previous studies have systematically investigated densification in ring-shaped parts. Additionally, the effect of filling parameters on filling and green density was explored, demonstrating the strong influence of the die cavity on the origin of inhomogeneous powder distribution. A uniform density is mandatory for industrial production, so further investigation is necessary, also including the contribution of powder transfer. This work aims at investigating the effect of powder transfer on the density distribution and the geometrical precision in 2-level axi-symmetric parts. Sample geometry was compacted by varying: the filling parameters, powder transfer strategies, and compaction forces. Reference samples were produced by excluding the powder transfer step from the compaction cycle. Green and sintered density distribution were derived, highlighting the effect of filling, powder transfer, and compaction strategies.
2023
Euro Powder Metallurgy 2023 Congress and Exhibition Proceedings
Chantilly, France
European Powder Metallurgy Association (EPMA)
9781713882909
Zago, Marco; Rambelli, Alex; Foschi, Davide; Cristofolini, Ilaria
Influence Of Powder Transfer On Density Distribution And Geometrical Precision In Multilevel Axi-Symmetric Parts / Zago, Marco; Rambelli, Alex; Foschi, Davide; Cristofolini, Ilaria. - (2023). (Intervento presentato al convegno PM 2023 tenutosi a Lisbon, Portugal nel 1st-4th October 2023) [10.59499/EP235764659].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/403910
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