Open Access
Table 4
Analysis condition.
| Blank | Material type | Elasto-plastic |
| Material hardening | Swift's law σT = K(εp+ε0)n | |
| Outer diameter DB / mm | 50, 60 | |
| Thickness t0 / mm | 0.3, 0.5 | |
| Punch | Material type | Rigid |
| Outer diameter DP / mm | 28.4 | |
| Radius RP / mm | 3 | |
| Die (Common) | Material type | Rigid |
| Inner diameter DD / mm | 30 | |
| Single R die | Radius RD / mm | 3 |
| Multiple R die | Shape factor f | 4 |
| Minimum radius RDmin / mm | 3 | |
| Maximum radius RDmax / mm | 5 | |
| Angle between the material rolling direction and die reference direction α /° | 0, 45 | |
| Blank holder pressure PB / MPa | 1.47, 1.96, 2.94 | |
| Coefficient of friction µ | 0.05 | |
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