
Setting guidelines for cutting loads, fluid pressure
and flow rate during STS operation
| Net power | | Feed force | | Torque |
| 25 | | 15 | | 0.5 |
| 20 | V | | | 0.4 |
| f c = 100 m/min | | V | |
| = 0.25 mm/rev | | f c = 100 m/min | V |
| 10 | = 0.25 mm/rev | f c = 100 m/min |
| 15 | | | 0.3 | = 0.25 mm/rev |
| 10 | | | 0.2 | |
| | 5 | | |
| 5 | V | Vc = 70 m/min | 0.1 | |
| c = 70 m/min | f | | V |
| f = 0.15 mm/rev | = 0.15 mm/rev | | f c = 70 m/min |
| | | | = 0.15 mm/rev |
| 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 |
| | Drill dia. (mm) | | | | | | | | | Drill dia. (mm) | | | | | | | Drill dia. (mm) | | | | | |
Coolant pressure Coolant volume
10 400
1MPa = 1.0 N/mm2
8 1Mpa ≈ 10 atm 300 6 200 4 100 2
0 10 20 30 40 50 60 70 0 10 20 30 40 50 60 70
Drill dia. (mm) Drill dia. (mm)
Setting guidelines for cutting loads, fluid pressure
and flow rate during DTS operation
| Net power | | Feed force | | | Torque | |
| 25 | | 15 | | | 0.5 | |
| 20 | V | | V | | 0.4 | V |
| f c = 100 m/min | | f c = 100 m/min | | | f c = 100 m/min |
| = 0.25 mm/rev | 10 | = 0.25 mm/rev | | | = 0.25 mm/rev |
| 15 | | | | | 0.3 | |
| 10 | | | | | 0.2 | |
| | 5 | | | | |
| | | | Vc = 70 m/min | | |
| 5 | | | | f | 0.1 | |
| Vc = 70 m/min | = 0.15 mm/rev | Vc = 70 m/min |
| f = 0.15 mm/rev | | f = 0.15 mm/rev |
| 0 | 10 20 | 30 40 | 70 60 50 0 | 20 10 30 | 70 60 50 40 30 10 0 70 60 50 40 20 |
| Drill dia. (mm) | | | Drill dia. (mm) | Drill dia. (mm) |
| Coolant pressure | | | Coolant volume | | |
| 2 | | | 200 | | |
| | 1MPa = 1.0 N/mm 2 | | | |
| | 1Mpa ≈ 10 atm | | | |
| 1.5 | | | 150 | | |
| 1 | | | 100 | | |
| 0.5 | | | 50 | | |
0 10 20 30 40 50 60 70 0 10 20 30 40 50 60 70