
Kasi ya Kukata Nyenzo ya Vc (m/dak) ya Ukaguzi – Kipengele cha Kuchimba Bit Dia(≤12.00-22.00mm) Maalum ya Ukaguzi – Drill Bit Dia(≥25.00-28.00mm) Maalum ya Ukaguzi – Chimba Bit Dia(≥35.00-22.00mm) Ujenzi wa chuma (≥35.00-22.00mm)070mm. 80-100 0.085-0.100 0.080-0.110 0.080-0.140 Chuma kigumu kilichoimarishwa (≤700mm)...
| Nyenzo ya kazi | Kasi ya Kukata Vc (m/min) | Maalum ya Ukaguzi - Drill Bit Dia(≤12.00-22.00mm) | Maalum ya Ukaguzi - Drill Bit Dia(≥25.00-28.00mm) | Maalum ya Ukaguzi - Drill Bit Dia(≥35.00-35.00mm) |
| Chuma cha ujenzi (≤700mm) | 80-100 | 0.085-0.100 | 0.080-0.110 | 0.080-0.140 |
| Chuma kigumu kigumu (≤700mm) | 80-100 | 0.085-0.100 | 0.080-0.110 | 0.100-0.140 |
| Chuma kigumu kigumu (> 1100mm) | 70-80 | 0.070-0.100 | 0.080-0.110 | 0.100-0.130 |
| Chuma kinachostahimili joto (≤700mm) | 70-80 | 0.070-0.100 | 0.080-0.110 | 0.080-0.140 |
| Chuma inayotolewa kwa baridi (≤410mm) | 65-75 | 0.070-0.100 | 0.080-0.110 | 0.100-0.130 |
| Silicon chuma (<1100mm) | 65-75 | 0.070-0.090 | 0.080-0.110 | 0.080-0.120 |
| Chuma cha chemchemi (≤900mm) | 60-80 | 0.070-0.100 | 0.080-0.110 | 0.080-0.140 |
| Austenitic chuma | 60-80 | 0.070-0.090 | 0.080-0.110 | 0.100-0.120 |
| Chuma kisichostahimili joto | 60-70 | 0.070-0.090 | 0.080-0.110 | 0.100-0.120 |
| Chuma maalum (≤700mm) | 60-80 | 0.070-0.100 | 0.080-0.110 | 0.080-0.140 |
| Chuma cha silicon manganese (≤700mm) | 65-80 | 0.090-0.120 | 0.100-0.130 | 0.120-0.150 |
| Chuma cha kutupwa, chuma cha aloi, chuma cha ductile | 70-100 | 0.090-0.120 | 0.100-0.130 | 0.120-0.150 |
| Alumini | 100-200 | 0.080-0.110 | 0.080-0.120 | 0.080-0.140 |
| Shaba (Maudhui ya Cu ≥99%) | 120-300 | 0.050-0.090 | 0.050-0.110 | 0.080-0.120 |