Open Access
Table 1.
Conditions used for hot semi-punching.
| Heating temperature | 1100 °C |
| Forming temperature | 850 °C |
| Punch speed in hot semi-punching | 15 mm/s |
| Holding time at bottom dead centre | 5 s |
| Remainder rate | r = 5–50% |
| Clearance | c = 0, 10% |
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