Page 24 - HOLE MAKING CATALOG p185-310

DEEP DRILLING - BTA SYSTEM USER GUIDE

Technical GuidePc (kW) DTS - Setting guidelines for cutting loads, fluidPc (kW)
pressure and flow rate during DTS operation
STS - Setting guidelines for cutting loads, fluid
pressure and flow rate during STS operation Net power

Net power 25

25 20 fV=c =0.21500mmm//mreinv

20 fV=c =0.21500mmm//mreinv 15

15 10

10 5

5 fV=c =0.1750 mmm/m/rinev Vc = 70 m/min
f = 0.15 mm/rev
0 10 20 30 40 50 60 70
0 10 20 30 40 50 60 70
Drill dia. (mm)
Feed force Drill dia. (mm)
Feed force
15
15
10 fV=c =0.21500mmm//mreinv
10 fV=c =0.21500mmm//mreinv

Ff (kN) 5 Ff (kN) 5

fV=c =0.1750 mmm/m/rinev fV=c =0.1750 mmm/m/rinev

0 10 20 30 40 50 60 70 0 10 20 30 40 50 60 70

Drill dia. (mm) Drill dia. (mm)
Torque
Torque
0.5
0.5
0.4
0.4 Vc = 100 m/min
Vc = 100 m/min f = 0.25 mm/rev
0.3 f = 0.25 mm/rev
T (kNm) 0.3
0.2
T (kNm) 0.2
0.1
0.1 fV=c =0.1750 mmm/m/rinev
Vc = 70 m/min 0
f = 0.15 mm/rev 10 20 30 40 50 60 70
2
0 10 20 30 40 50 60 70 1.5 Drill dia. (mm)
Coolant pressure
Drill dia. (mm)
Coolant pressure 1MPa = 1.0 N/mm2
1Mpa ≈ 10 atm
10
P (MPa) P (MPa) 1
8 11MMPpaa ≈= 110.0aNtm/mm2
0.5
6

4

2

0 10 20 30 40 50 60 70 0 10 20 30 40 50 60 70
400
Drill dia. (mm) Drill dia. (mm)
Coolant volume
Coolant volume
200
300
150
q (l/min) 200 q (l/min)
100
100
50

0 10 20 30 40 50 60 70 0 10 20 30 40 50 60 70

Drill dia. (mm) Drill dia. (mm)

The above values should not be used as the exact recommendations. They may need modification depending on the machining conditions, materials, etc.

208 ISCAR