Table 1.
The control factors for compressive strength and surface roughness.
| Control Factors | Unit | Levels |
|---|---|---|
| 1 2 | 3 | |
| Build Orientation | X Z | – |
| Ultrasonic Frequency | (kHz) 0 10 | 20 |
| Layer thickness | (mm) 0.2 - | – |
| Raster Angle | (◦) 30 - | – |
| Infill Pattern | Grid - | – |
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