Optimum BF20 V - Standard Values for Cutting Speeds

OPTIMUM
MASCHINEN - GERMANY
Version 3.1.8 dated 2015-1-27Page 28 Original operating instructions
BF20VUS
4.8.1 Standard values for cutting speeds
[FPM] with high-speed steel and hard metal in conventional milling
Given below are standard values for speeds depending on the milling cutter diameter, cutter
type and material.
Tool Steel Grey Cast Iron
A g e - H a r d e n e d
Al alloy
Peripherial and side milling (FPM) 33 - 82 33 - 72 492 - 1,148
Relieved form cutters (FPM) 49 - 79 33 - 66 492 - 820
Inserted tooth cutter with SS (FPM) 49 - 79 39 - 82 656 - 984
Inserted tooth cutter with HM (FPM) 328 - 656 98 - 328 984 - 1,312
Tool diameter (in.)
Peripheral and side milling cutters
Steel Grey Cast Iron
Age-Hardened
Al alloy
33 - 82 FPM 33 - 72 FPM 492 - 1,148 FPM
Speed (RPM)
1.378" 91 - 227 91 - 200 1,365 - 3,185
1.575" 80 - 199 80 - 175 1,195 - 2,790
1.772" 71 - 177 71 - 156 1,062 - 2,470
1.969" 64 - 159 64 - 140 955 - 2,230
2.165" 58 - 145 58 - 127 870 - 2,027
2.362" 53 - 133 53 - 117 795 - 1,860
2.559" 49 - 122 49 - 108 735 - 1,715
Tool diameter (in.)
Form cutters
Steel Grey Cast Iron
Age-Hardened
Al alloy
49 - 79 FPM 33 - 66 FPM 492 - 820 FPM
Speed (RPM)
0.1575" 1,194 - 1,911 796 - 1,592 11,900 - 19,000
0.1969" 955 - 1,529 637 - 1,274 9,550 - 15,900
0.2362" 796 - 1,274 531 - 1,062 7,900 - 13,200
0.3150" 597 - 955 398 - 796 5,900 - 9,900
0.3937" 478 - 764 318 - 637 4,700 - 7,900
0.4724" 398 - 637 265 - 531 3,900 - 6,600
0.5512" 341 - 546 227 - 455 3,400 - 5,600
0.6299" 299 - 478 199 - 398 2,900 - 4,900