
Cyflymder Torri Deunydd Workpiece Vc (m/munud) Manyleb Arolygu – Dril Bit Dia(≤12.00-22.00mm) Manyleb Arolygu – Dril Bit Dia(≥25.00-28.00mm) Manyleb Arolygu – Drill Bit Dia(≥35.00-35.00mm) Dur adeiladu (≤70.00-08. 0.080-0.110 0.080-0.140 Dur wedi'i galedu ag achos (≤700mm)...
| Deunydd Workpiece | Cyflymder Torri Vc (m/munud) | Manyleb Arolygu - Drill Bit Dia (≤12.00-22.00mm) | Manyleb Arolygu - Drill Bit Dia (≥25.00-28.00mm) | Manyleb Arolygu - Drill Bit Dia (≥35.00-35.00mm) |
| Dur adeiladu (≤700mm) | 80-100 | 0.085-0.100 | 0.080-0.110 | 0.080-0.140 |
| Dur wedi'i galedu â chas (≤700mm) | 80-100 | 0.085-0.100 | 0.080-0.110 | 0.100-0.140 |
| Dur wedi'i galedu â chas (> 1100mm) | 70-80 | 0.070-0.100 | 0.080-0.110 | 0.100-0.130 |
| Dur sy'n gwrthsefyll gwres (≤700mm) | 70-80 | 0.070-0.100 | 0.080-0.110 | 0.080-0.140 |
| Dur wedi'i dynnu'n oer (≤410mm) | 65-75 | 0.070-0.100 | 0.080-0.110 | 0.100-0.130 |
| Dur silicon (<1100mm) | 65-75 | 0.070-0.090 | 0.080-0.110 | 0.080-0.120 |
| Dur gwanwyn (≤900mm) | 60-80 | 0.070-0.100 | 0.080-0.110 | 0.080-0.140 |
| Dur austenitig | 60-80 | 0.070-0.090 | 0.080-0.110 | 0.100-0.120 |
| Dur sy'n gwrthsefyll gwres | 60-70 | 0.070-0.090 | 0.080-0.110 | 0.100-0.120 |
| Dur arbennig (≤700mm) | 60-80 | 0.070-0.100 | 0.080-0.110 | 0.080-0.140 |
| Dur manganîs silicon (≤700mm) | 65-80 | 0.090-0.120 | 0.100-0.130 | 0.120-0.150 |
| Haearn bwrw, haearn bwrw aloi, haearn hydwyth | 70-100 | 0.090-0.120 | 0.100-0.130 | 0.120-0.150 |
| Alwminiwm | 100-200 | 0.080-0.110 | 0.080-0.120 | 0.080-0.140 |
| Copr (cynnwys Cu ≥99%) | 120-300 | 0.050-0.090 | 0.050-0.110 | 0.080-0.120 |