Table 2.
The results of the temperature change during cutting for the undried and dried models with the composition of PC–700 g, PO–5.0 g, talc−3.5 g in comparison with the commercial model. The temperature increase (ΔT) for drill 1 and drill 2 separately was calculated as the difference between the highest temperature obtained in the drilling process and the initial temperature of the analyzed surface. Standard divination (SD) was also calculated.
| Sample Number | Commercial Model | Model Undryed | Model Dryed | |||
|---|---|---|---|---|---|---|
| ΔT drill 1 [°C] | ΔT drill 2 [°C] | ΔT drill 1 [°C] | ΔT drill 2 [°C] | ΔT drill 1 [°C] | ΔT drill 2 [°C] | |
| 1. | 1.0 | 4.2 | 1.4 | 5.0 | 1.4 | 3.1 |
| 2. | 1.4 | 3.3 | 1.8 | 5.1 | 1.7 | 3.8 |
| 3. | 0.7 | 9.0 | 6.0 | 4.0 | 2.9 | 4.0 |
| 4. | 1.6 | 14.6 | 3.1 | 4.0 | 1.8 | 3.9 |
| 5. | 1.2 | 7.7 | 1.7 | 3.8 | 1.5 | 3.9 |
| 6. | 0.4 | 6.4 | 1.5 | 4.2 | 1.8 | 4.3 |
| 7. | 0.6 | 6.8 | 1.5 | 5.1 | 2.9 | 3.4 |
| 8. | 0.8 | 6.4 | 1.9 | 4.4 | 2.5 | 3.7 |
| 9. | 1.3 | 7.9 | 2.9 | 3.4 | 2.2 | 3.9 |
| 10. | 1.7 | 5.1 | 2.5 | 3.7 | 3.0 | 4.1 |
| 11. | 2.4 | 7.0 | 3.8 | 5.1 | 3.6 | 5.0 |
| 12. | 2.4 | 16.5 | 3.6 | 5.2 | 3.4 | 7.6 |
| 13. | 6.6 | 13.5 | 3.4 | 7.6 | 3.7 | 5.2 |
| 14. | 6.3 | 15.1 | 2.9 | 4.5 | 5.9 | 5.0 |
| 15. | 6.1 | 14.4 | 4.4 | 14.1 | 4.4 | 14.1 |
| Average | 2.3 | 9.2 | 2.8 | 5.3 | 2.8 | 5.0 |
| SD | 2.1 | 4.1 | 1.2 | 2.6 | 1.2 | 2.7 |