Optimum Optimill MT 50 - Standard Values for Cutting Speeds

Version 1.2.8 - 2020-08-0334 Translation of original operating manual
MT50
GB
MT50_GB_4.fm
5.6.4 Speed table vertical milling
Img.5-6: Speed table vertical milling ~ 50Hz connection
5.7 Standard values for cutting speeds
[ m/min ] with high-speed steel and hard metal in upcut milling
The results are the following standard values for speeds in dependence of the
milling cutter diameter, cutter type and material.
Tool Steel Grey cast iron
Al alloy
age-hardened
Plain mill and side milling cutters [ m/
min ]
10 - 25 10 - 22 150 - 350
Relieved form cutters [ m/min ] 15 - 24 10 - 20 150 - 250
Inserted -tooth cutter with SS [ m/min ] 15 - 30 12 - 25 200 - 300
Inserted-tooth cutter with HM [ m/min ] 100 - 200 30 - 100 300 - 400
Tool diameter [ mm ] plain mill-
ing cutter and shell end mill
Steel
10 - 25 m/min
Grey cast iron
10 - 22 m/min
Cured Al alloy
150 - 350
m/min
Speed [ min
-1
]
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