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Selected functional, spatial and hybrid parameters of surface roughness of the specimen: width 20 mm; drawbead height h = 18 mm; Ra of rollers 0.63 μm; machine oil lubrication.
| Source of Measurement | Smr (%) | Smc (μm) | Sal (mm) | Str | Std (°) | Sdq | Sdr (%) |
|---|---|---|---|---|---|---|---|
| original surface | 0.00029 | 2.00 | 0.055 | 0.93 | 178.5 | 0.15 | 1.05 |
| A | 0.088 | 2.30 | 0.056 | 0.86 | 178.5 | 0.15 | 1.14 |
| B | 0.104 | 2.08 | 0.055 | 0.89 | 1.5 | 0.14 | 1.03 |
