Open Access
Table 2
Welding parameter − spot weld bonding of three-sheet steel stack-ups [7,9].
| Material Combination (I) | Material Combination (II) | ||||
|---|---|---|---|---|---|
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|
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| Parameters (I) | Parameters (II) | Parameters (I) | Parameters (II) | ||
| Squeeze time | 1000 ms | 1000 ms | 1000 ms | 1000 ms | |
| Preheat pulse | Current | – | 7.8 kA | 11.0 kA | 5.5 kA |
| Preheat time | – | 250 ms | 30 ms | 250 ms | |
| Pause time | – | 20 ms | 20 ms | 20 ms | |
| Main pulse | Current | 8.05–9.05 kA | 7.40–9.60 kA | 6.00–7.15 kA | 5.75–7.55 kA |
| Weld time | 350 ms | 350 ms | 350 ms | 350 ms | |
| Hold time | 300 ms | 300 ms | 300 ms | 300 ms | |
| Electrode force | 2 kN | 2 kN | |||
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