Feasibility Study of Solid-State Recycling through Direct Hot Rolling of AA5754 Aluminum Chips for Automotive Applications

Research output: Contributions to collected editions/worksChapterpeer-review

Authors

  • Mohamad El Mehtedi
  • Pasquale Buonadonna
  • Rayane El Mohtadi
  • Gabriela Loi
  • Francesco Aymerich
  • Noomane Ben Khalifa
  • Mauro Carta

Recently, researchers have done a lot of efforts to develop new solid-state recycling processes, both experimentally and developing numerical models. This kind of process is energysaving and environmentally friendly compared to the conventional aluminum recycling process because it avoids the melting step. The purpose of this study is to assess the feasibility of an innovative solid-state recycling process using direct hot rolling in a non-heat-treatable aluminum alloy for automotive applications. The chips made of AA5754 have been produced by turning a bar without the usage of lubricants and compacted with a 150 kN load; the compacted billets were treated at 400°C and directly hot rolled in several successive passes. Rolled samples are then analyzed in terms of Vickers microhardness and microstructure in both as-rolled and heat treatment conditions, this last was performed at 185°C simulating the process of paint-bake. The produced sheets exhibit an excellent consolidation and bonding between chips.

Original languageEnglish
Title of host publicationAluminum, Polymers, Composites and Additive Manufacturing
EditorsTakashige Omatsu, Lorenzo Donati, Nicursor Alin Sirbu, Amjad Ali
Number of pages10
PublisherTrans Tech Publications Ltd
Publication date01.10.2024
Pages3-12
ISBN (print)9783036406824
ISBN (electronic)9783036416823
DOIs
Publication statusPublished - 01.10.2024

Bibliographical note

Publisher Copyright:
© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

    Research areas

  • AA5754 chips, automotive, Direct Hot Rolling, microstructure, Solid-state recycling
  • Engineering

DOI