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Tool diameter
[mm] plain milling cutters and
shell end mills
35
40
45
50
55
60
65
Tool diameter
[mm] Form mills
4
5
6
8
10
12
14
16
4.8.2
Standard values for speeds with HSS high speed steel – Eco – twist drills
Material
Steel, unalloyed,
2
up to 600 N/mm
Mild steel, alloyed, tempered,
2
up to 900N/mm
Mild steel, alloyed, tempered,
2
up to 1200 N/mm
Stainless steels up to 900 N/
2
mm
e.g. X5CrNi18 10
Version 1.0.1 - 2021-11-18
Steel
10 - 25 m/min
91 - 227
80 - 199
71 - 177
64 - 159
58 - 145
53 - 133
49 - 122
Steel
15 - 24 m/min
1194 - 1911
955 - 1529
796 - 1274
597 - 955
478 - 764
398 - 637
341 - 546
299 - 478
Drill diameter
2
3
4
5
1)
n
5600
3550
2800
2240
2)
f
0.04
0.063
0.08
0.10
n
3150
2000
1600
1250
f
0.032
0.05
0.063
0.08
n
2500
1600
1250
1000
f"
0.032
0.04
0.05
0.063
n
2000
1250
1000
800
f
0.032
0.05
0.063
0.08
1): Speed [n] in rpm
2): Feed [f] in mm/rev
Translation of original instruction
Grey cast iron
case-hardened
10 - 22 m/min
Rotational speed [ rpm ]
91 - 200
80 - 175
71 - 156
64 - 140
58 - 127
53 - 117
49 - 108
Aluminium alloy
Grey cast iron
case-hardened
10 - 20 m/min
Rotational speed [ rpm ]
796 - 1592
11900 - 19000
637 - 1274
9550 - 15900
531 - 1062
7900 - 13200
398 - 796
5900 - 9900
318 - 637
4700 - 7900
265 - 531
3900 - 6600
227 - 455
3400 - 5600
199 - 398
2900 - 4900
6
7
8
9
2000
1600
1400
1250
1120
0.125 0.125
0.16
0.16
0.20
1000
900
800
710
630
0.10
0.10
0.125 0.125
0.16
800
710
630
560
500
0.08
0.10
0.10
0.125 0.125
630
500
500
400
400
0.10
0.10
0.125 0.125
0.16
Aluminium
alloy
150 - 350
m/min
1365 - 3185
1195 - 2790
1062 - 2470
955 - 2230
870 - 2027
795 - 1860
735 - 1715
150 - 250
m/min
3)
Cooling
10
E
E/oil
Oil
Oil
MB4
EN
71
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