RLL233 Issue 4 Aug 2007
1613] CUTTING SPEEDS.Material
Surface speed (M/min)
Aluminium
60-90
Cast iron
Soft
30-50
Hard alloy
15-21
Malleable
15-30
Steel
Mild (460 N/mm_)
24-30
(460-770 N/mm_)
15-27
(770-1070 N/mm_)
9-15
1070-1230 N/mm_)
6-9
Stainless
steel
Ferritic
15-18
Austenitic
12-15
Martensitic
9-15
Typical cutting speeds (RPM) for various materials
Cutter Surface speed. Cutter Surface speed.
dia 9 15 30 45 dia 9 15 30 45
12 239 398 796 1194 39 73 122 245 367
13 220 367 734 1102 40 72 119 239 358
14 205 341 682 1023 41 70 116 233 349
15 191 318 637 955 42 68 114 227 341
16 179 298 597 895 43 67 111 222 333
17 168 281 562 842 44 65 109 217 326
18 159 265 530 796 45 64 106 212 318
19 151 251 503 754 46 62 104 208 311
20 143 239 477 716 47 61 102 203 305
21 136 227 455 682 48 60 99 199 298
22 130 217 434 651 49 58 97 195 292
23 125 208 415 623 50 57 95 191 286
24 119 199 398 597 51 56 94 187 281
25 115 191 382 573 52 55 92 184 275
26 110 184 367 551 53 54 90 180 270
27 106 177 354 530 54 53 88 177 265
28 102 171 341 512 55 52 87 174 260
29 99 165 329 494 56 51 85 171 256
30 95 159 318 477 57 50 84 168 251
31 92 154 308 462 58 49 82 165 247
32 90 149 298 448 59 49 81 162 243
33 87 145 289 434 60 48 80 159 239
34 84 140 281 421 61 47 78 157 235
35 82 136 273 409 62 46 77 154 231
36 80 133 265 398 63 45 76 152 227
37 77 129 258 387 64 45 75 149 224
38 75 126 251 377 65 44 73 147 220
These speeds should be viewed as a suggested starting point only.
The machine speed may require adjustment to suit the application conditions.