Friction Stir Extrusion (FSE) is a novel process designed to directly recycle machining chips. An experimental campaign was carried out on AZ31 milling chips using variations in extrusion ratio, force and tool rotation rate. The process mechanics were studied and correlated to the material flow, which was elucidated through use of a copper marker. A 3D, Lagrangian, thermo-mechanically coupled dedicated numerical model was set up and validated through temperature measurements. The combination of experimental and numerical results permitted to reconstruct the complex 3D material flow induced by tool rotation and plunge into the extrusion billet chamber.

Baffari, D., Buffa, G., Campanella, D., Fratini, L., Reynolds, A. (2017). Process mechanics in Friction Stir Extrusion of magnesium alloys chips through experiments and numerical simulation. JOURNAL OF MANUFACTURING PROCESSES, 29, 41-49 [10.1016/j.jmapro.2017.07.010].

Process mechanics in Friction Stir Extrusion of magnesium alloys chips through experiments and numerical simulation

Baffari, Dario;Buffa, Gianluca
;
Campanella, Davide;Fratini, Livan;
2017-01-01

Abstract

Friction Stir Extrusion (FSE) is a novel process designed to directly recycle machining chips. An experimental campaign was carried out on AZ31 milling chips using variations in extrusion ratio, force and tool rotation rate. The process mechanics were studied and correlated to the material flow, which was elucidated through use of a copper marker. A 3D, Lagrangian, thermo-mechanically coupled dedicated numerical model was set up and validated through temperature measurements. The combination of experimental and numerical results permitted to reconstruct the complex 3D material flow induced by tool rotation and plunge into the extrusion billet chamber.
2017
Settore ING-IND/16 - Tecnologie E Sistemi Di Lavorazione
Baffari, D., Buffa, G., Campanella, D., Fratini, L., Reynolds, A. (2017). Process mechanics in Friction Stir Extrusion of magnesium alloys chips through experiments and numerical simulation. JOURNAL OF MANUFACTURING PROCESSES, 29, 41-49 [10.1016/j.jmapro.2017.07.010].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/249815
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