Page 117 - Aluminum_Machining_catalog_2023

USER GUIDE

Machining Conditions

Machine Power and Feed Force Requirements Internal Coolant Pressure

Selecting Coolant Pressure and Flow Rate
Power Required, in Relation to Drill Diameter Coolant Flow Rate (liter/min)
24 60
22 flow
rate
20 INDEXABLE DRILLING INSERT
18 45
power Pe (kW) 14 8 30
16
12
10

4 6 15
2
0
16 20 24 28 30 34 38 42 46 50 54 58 62 66 70
drill diameter D (mm) 16 25 35 45 60
f=0.25 drill diameter D (mm)
f=0.18
f=0.1 Minimum Coolant Pressure (bar)
Machine Power 10
Pe · C
P = η 9 8 7-13 X D

Vc [m/min] 100 150 200 7
C 1.0 1.5 2.0 6 4.5 X D
η=machine efficiency 3 X D
5
Feed Force (thrust Force) Required, 2 X D
in Relation to Drill Diameter 4
3
12
11 2
10
9 8 1
power Pe (kW) 7 6 5 4 16 25 drill diameter D (mm) 55 65
35
45

pressure 15–70 bar
2 3 * For special drills more than 4xD, it is recommended to use high coolant
1
0
16 20 24 28 30 34 38 42 46 50 54 58 62 66 70
drill diameter D (mm)
f=0.25
f=0.18
f=0.1

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