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Abrasive waterjet machining of three-dimensional structures from bulk metallic glasses and comparison with other techniques

Wessels, Victor ; Grigoryev, Anton ; Dold, Claus ; Wyen, Carl-Frederik ; Roth, Raoul ; Weingärtner, Eduardo ; Pude, Frank ; Wegener, Konrad ; Löffler, Jörg F.

In: Journal of Materials Research, 2012, vol. 27, no. 8, p. 1187-1192

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    Titre
    • Abrasive waterjet machining of three-dimensional structures from bulk metallic glasses and comparison with other techniques
    Auteur
    • Wessels, Victor. Laboratory of Metal Physics and Technology, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
    • Grigoryev, Anton. INSPIRE AG, 8092 Zurich, Switzerland; and Institute of Machine Tools and Manufacturing (IWF), ETH Zurich, 8092 Zurich, Switzerland
    • Dold, Claus. INSPIRE AG, 8092 Zurich, Switzerland
    • Wyen, Carl-Frederik. INSPIRE AG, 8092 Zurich, Switzerland
    • Roth, Raoul. INSPIRE AG, 8092 Zurich, Switzerland
    • Weingärtner, Eduardo. Institute of Machine Tools and Manufacturing (IWF), ETH Zurich, 8092 Zurich, Switzerland
    • Pude, Frank. INSPIRE AG, 8092 Zurich, Switzerland
    • Wegener, Konrad. INSPIRE AG, 8092 Zurich, Switzerland; and Institute of Machine Tools and Manufacturing (IWF), ETH Zurich, 8092 Zurich, Switzerland
    • Löffler, Jörg F.. Laboratory of Metal Physics and Technology, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Journal of Materials Research, 2012, vol. 27, no. 8, p. 1187-1192. Cambridge University Press
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:292643
    Summary
    Bulk metallic glasses (BMGs) are a promising class of engineering materials, but they can be difficult to machine due to high hardness and a metastable structure. Crystallization due to machining can have negative effects, such as a decreased load-bearing capacity of fabricated parts, and thus should be avoided. Here, a Zr-based BMG was machined using abrasive waterjet (AWJ), electrical discharge, ns-pulsed laser engraving, and conventional dry-milling techniques. Characterization of the processed material indicated that AWJ preserves the amorphous phase and provides the combination of speed and flexibility required to rapidly fabricate small three-dimensional parts, while the other techniques did not achieve these goals. As proof-of-principle, a screw, similar to an orthopedic implant, was rapidly machined from the BMG using AWJ