Optimum OPTImill MT 60 - Standard Values for Cutting Speeds

Operation
Version 1.0.4 - 2020-08-0432 Translation of original instruction
MT60
EN
MT60_GB_4.fm
4.6 Standard values for cutting speeds
[m/min] with high-speed steel and hard metal for upcut milling.
This results in the following standard speeds, dependent on
mill diameter, mill type and material.
Tool Steel Grey cast iron
Al alloy
case-hard-
ened
Plain milling cutters and shell end mills
[m/min]
10 - 25 10 - 22 150 - 350
Relieved milling cutters [m/min] 15 - 24 10 - 20 150 - 250
Cutter head with SS [m/min] 15 - 30 12 - 25 200 - 300
Cutter head with HM [m/min] 100 - 200 30 - 100 300 - 400
Tool diameter [ mm ] shell end
mill, helical milling cutter
Steel
10 - 25 m/min
Grey cast iron
10 - 22 m/min
Al-alloy hard-
ened
150 - 350
m/min
Speed [rpm]
35 91 - 227 91 - 200 1364 - 3183
40 80 - 199 80 - 175 1194 - 2785
45 71 - 177 71 - 156 1061 - 2476
50 64 - 159 64 - 140 955 - 2228
55 58 - 145 58 - 127 868 - 2025
60 53 - 133 53 - 117 796 - 1857
65 49 - 122 49 - 108 735 - 1714
Tool diameter
[mm]
Form mills
Steel
15 - 24 m/min
Grey cast iron
10 - 20 m/min
Al-alloy hard-
ened
150 - 250
m/min
Speed [rpm]
4 1194 - 1911 796 - 1592 11937 - 19894
5 955 - 1529 637 - 1274 9549 - 15916
6 796 - 1274 531 - 1062 7958 - 13263
8 597 - 955 398 - 796 5968 - 9947
10 478 - 764 318 - 637 4775 - 7958
12 398 - 637 265 - 531 3979 - 6631
14 341 - 546 227 - 455 3410 - 5684
16 299 - 478 199 - 398 2984 - 4974