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Critical friction extrusion parameters for recycling and upcycling processes
| Process | Starting material | Spindle speed (RPM) | Plunge speed (mm/min) |
|---|---|---|---|
| Recycle | 6063 Al alloy scrap | From 300 to 100 | From 6 to 4 and 2 |
| Upcycle | 6063 Al alloy scraps + Zn powders + Cu powders + ZK60 Mg alloy ribbons | From 300 to 100 | From 6 to 4 and 2 |
