Several models have been proposed in literature for decades to describe the relationships between the compaction pressure and green density. Some of them are almost empirical, others are based on a theoretical approach starting from the phenomena occurring during cold compaction. The authors of the present paper have recently (2018) proposed a model based on the investigation of the deformation experienced by the powder mix when subject to the application of the compaction pressure. In this work, the model is compared with the three most recently published ones: the Aryanpour and Farzaneh model (2015), evaluating the contribution of rearrangement; the Parilak et al. model (2017) that was validated with experimental data relevant to 205 powder mixes, and the Montes et al. equation (2018) that was developed considering the local stress and strain in the interparticle contacts. Compaction experiments were carried out on a commercial AISI 316L stainless steel powder mix, sieved in different particle size ranges, and the data collected by the compaction press control unit were used.

The Analysis Of The Densification Curve Of Metallic Powders In Uniaxial Cold Compaction / Cristofolini, Ilaria; Molinari, Alberto; Zago, Marco; Pederzini, Gianluca; Rambelli, Alex. - In: ADVANCES IN POWDER METALLURGY & PARTICULATE MATERIALS. - ISSN 1546-7724. - 2019:1(2019), pp. 30-41. ((Intervento presentato al convegno POWDERMET 2019 tenutosi a Phoenix, Arizona nel 23th-26th June 2019.

The Analysis Of The Densification Curve Of Metallic Powders In Uniaxial Cold Compaction

Cristofolini, Ilaria;Molinari, Alberto;Zago, Marco;
2019-01-01

Abstract

Several models have been proposed in literature for decades to describe the relationships between the compaction pressure and green density. Some of them are almost empirical, others are based on a theoretical approach starting from the phenomena occurring during cold compaction. The authors of the present paper have recently (2018) proposed a model based on the investigation of the deformation experienced by the powder mix when subject to the application of the compaction pressure. In this work, the model is compared with the three most recently published ones: the Aryanpour and Farzaneh model (2015), evaluating the contribution of rearrangement; the Parilak et al. model (2017) that was validated with experimental data relevant to 205 powder mixes, and the Montes et al. equation (2018) that was developed considering the local stress and strain in the interparticle contacts. Compaction experiments were carried out on a commercial AISI 316L stainless steel powder mix, sieved in different particle size ranges, and the data collected by the compaction press control unit were used.
Advances in powder metallurgy and particulate materials 2019: proceedings of the 2019 International Conference on Powder Metallurgy and Particulate Materials
Princeton, NJ
MPIF
9781943694211
Cristofolini, Ilaria; Molinari, Alberto; Zago, Marco; Pederzini, Gianluca; Rambelli, Alex
The Analysis Of The Densification Curve Of Metallic Powders In Uniaxial Cold Compaction / Cristofolini, Ilaria; Molinari, Alberto; Zago, Marco; Pederzini, Gianluca; Rambelli, Alex. - In: ADVANCES IN POWDER METALLURGY & PARTICULATE MATERIALS. - ISSN 1546-7724. - 2019:1(2019), pp. 30-41. ((Intervento presentato al convegno POWDERMET 2019 tenutosi a Phoenix, Arizona nel 23th-26th June 2019.
File in questo prodotto:
File Dimensione Formato  
Paper 148.pdf

Solo gestori archivio

Tipologia: Post-print referato (Refereed author’s manuscript)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 1.63 MB
Formato Adobe PDF
1.63 MB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/244178
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? ND
social impact