Open Access
Table 2
Experimental procedure for validating the forces measured in the knuckle-joint press with a photograph of the disks before and after compression.
| Disk | Equipment | Die roughness (μm) | Diameter (mm) | Thickness (mm) | Compression stroke (mm) |
|---|---|---|---|---|---|
| 1 | Knuckle-joint press | 0.319 | 27.61 | 1.639 | 0.100 |
| 2 | 27.60 | 1.643 | 0.144 | ||
| 3 | 27.62 | 1.653 | 0.227 | ||
| 4 | 27.63 | 1.642 | 0.331 | ||
| 5 | 27.63 | 1.644 | 0.370 | ||
| 6 | Hydraulic testing machine | 27.61 | 1.646 | 0.380 | |
| 7 | 27.63 | 1.656 | 0.380 | ||
| 8 | <0.01 | 27.63 | 1.646 | 0.380 | |
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