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  4. A Comparative Evaluation of Powder Characteristics of Recycled Material from Bronze Grinding Chips for Additive Manufacturing
 
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2024
Journal Article
Title

A Comparative Evaluation of Powder Characteristics of Recycled Material from Bronze Grinding Chips for Additive Manufacturing

Abstract
In the manufacturing process of ship propellers, large quantities of grinding chips are generated. These grinding chips result from the finishing of the blade surfaces after the primary casting process of the propeller. The aim of this study was to investigate and compare different preparation processes used to produce chip powders with sufficient powder quality for the additive manufacturing process of directed energy deposition. The preparation of the samples was performed through different sieving, milling and re-melting processes. For the characterization of the prepared samples, powder analysis according to relevant industry standards was carried out. It was found that the re-melting processes result in superior powder quality for additive manufacturing in terms of particle size, morphology, and flowability. For some characteristics, the powder exhibits even better properties than those of commercial powders. Furthermore, the powder properties of the milled samples demonstrate a promising potential for use in additive manufacturing.
Author(s)
Uhlmann, Eckart  
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Polte, Julian  
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Fasselt, Janek Maria
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Müller, Vinzenz  
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Klötzer-Freese, Christian
Kleba-Ehrhardt, Rafael
Biegler, Max  
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Rethmeier, Michael  
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Journal
Materials  
Open Access
DOI
10.3390/ma17143396
Language
English
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Keyword(s)
  • additive manufacturing

  • aluminium bronze

  • comminution

  • grinding chips

  • recycling

  • sustainability

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