Arburg Plastic Freeforming allows for transforming granulated thermoplastics with variable shapes and sizes. This opens marvellous opportunities for in-place recycling of process waste and auxiliary structures. The present study investigates for the first time the effects of recycled material on the mechanical properties of manufactured parts. To this end, the mechanical, thermomechanical and rheological properties of parts produced with different contents of recycled material are investigated. Findings demonstrate that a balanced mixture of primary and secondary material determines a drop in mechanical performances due to a less accurate deposition. A higher percentage of recycled material determines a sharp decrease in viscosity, leading to a more homogeneous layer and tensile properties similar to those of the virgin polymer. The drop in viscosity also affects the accuracy of deposition, determining a worse definition of sharp edges.

Mattia Mele, G.P. (2023). Effects of short‐loop material recycling on mechanical properties of parts by Arburg Plastic Freeforming. PROGRESS IN ADDITIVE MANUFACTURING, first online, 1-9 [10.1007/s40964-023-00447-2].

Effects of short‐loop material recycling on mechanical properties of parts by Arburg Plastic Freeforming

Mattia Mele;Gregorio Pisaneschi;Andrea Zucchelli;Giampaolo Campana;Maurizio Fiorini
2023

Abstract

Arburg Plastic Freeforming allows for transforming granulated thermoplastics with variable shapes and sizes. This opens marvellous opportunities for in-place recycling of process waste and auxiliary structures. The present study investigates for the first time the effects of recycled material on the mechanical properties of manufactured parts. To this end, the mechanical, thermomechanical and rheological properties of parts produced with different contents of recycled material are investigated. Findings demonstrate that a balanced mixture of primary and secondary material determines a drop in mechanical performances due to a less accurate deposition. A higher percentage of recycled material determines a sharp decrease in viscosity, leading to a more homogeneous layer and tensile properties similar to those of the virgin polymer. The drop in viscosity also affects the accuracy of deposition, determining a worse definition of sharp edges.
2023
Mattia Mele, G.P. (2023). Effects of short‐loop material recycling on mechanical properties of parts by Arburg Plastic Freeforming. PROGRESS IN ADDITIVE MANUFACTURING, first online, 1-9 [10.1007/s40964-023-00447-2].
Mattia Mele, Gregorio Pisaneschi, Andrea Zucchelli, Giampaolo Campana, Maurizio Fiorini
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/923911
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