Open Access
Table 1.
The initial parameters of numerical simulation.
| Condition | Value |
|---|---|
| Material of billet | Copper |
| Material of tool and die | AISI-H13 |
| Diameter of billet (mm) | Φ20 |
| Initial temperature of billet (°C) | 20 |
| Initial temperature of tool and die (°C) | 450 |
| Rotation velocity of extrusion wheel (rpm) | 6, 9, 12 |
| Friction factor of billet and extrusion wheel | 0.95 |
| Friction factor of billet and guide roller | 0.05 |
| Friction factor of billet and chamber and die | 0.3 |
| Friction factor of billet and roller | 0.35 |
| Conductivity of billet (N/s K) | 30 |
| Heat capacity of billet (N m2/K) | 0.3 |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.