Cutting Speed Chart
The relative motion between the cutting edge of the tool and the work is called the cutting speed; the speed in which uncut material is brought into contact with the tool is called the feed motion. The speed of relative motion between the tool and workpiece in the main direction of cutting. Also known as feed rate; peripheral speed.
Effective or true cutting speed
Indicates the surface speed at the effective diameter (Dcap).
This value is necessary for determining the true cutting data at the actual depth of cut (ap). This is a particularly important value when using round insert cutters, ball nose end mills and all cutters with larger corner radii, as well as cutters with an entering angle smaller than 90 degrees.
Feed per revolution – fn (mm/rev)
Auxiliary value indicating how far the tool moves during one complete rotation.
It is used specifically for feed calculations and often to determine the finishing
capability of a cutter.
|
Ft./min.
|
50
|
60
|
70
|
80
|
100
|
|
M/min.
|
15
|
18
|
21
|
24
|
30
|
|
Drill Dia
|
|
|
|
|
|
|
in mm.
|
Revolutions Per Minute
|
|
1.0
|
4847
|
5817
|
6786
|
7756
|
9695
|
|
1.5
|
3237
|
3884
|
4532
|
5179
|
6474
|
|
2.0
|
2427
|
2912
|
3397
|
3883
|
4854
|
|
3.0
|
1617
|
1940
|
2264
|
2587
|
3234
|
|
5.0
|
970
|
1164
|
1359
|
1553
|
1941
|
|
6.0
|
808
|
970
|
1132
|
1294
|
1617
|
|
7.0
|
693
|
832
|
970
|
1109
|
1386
|
|
8.0
|
606
|
728
|
849
|
970
|
1213
|
|
9.0
|
539
|
647
|
755
|
862
|
1076
|
|
10.0
|
485
|
582
|
679
|
776
|
970
|
|
11.0
|
441
|
529
|
617
|
706
|
882
|
|
12.0
|
404
|
485
|
566
|
647
|
808
|
|
13.0
|
373
|
448
|
522
|
597
|
746
|
|
14.0
|
346
|
461
|
485
|
554
|
693
|
|
15.0
|
323
|
388
|
453
|
517
|
647
|
|
16.0
|
303
|
364
|
424
|
485
|
606
|
|
17.0
|
285
|
342
|
399
|
456
|
571
|
|
18.0
|
269
|
323
|
377
|
431
|
539
|
|
19.0
|
255
|
306
|
357
|
408
|
511
|
|
20.0
|
242
|
291
|
340
|
388
|
485
|
|
21.0
|
231
|
277
|
323
|
370
|
462
|
|
22.0
|
220
|
265
|
309
|
353
|
441
|
|
23.0
|
211
|
253
|
295
|
337
|
422
|
|
24.0
|
202
|
242
|
283
|
323
|
404
|
|
25.0
|
194
|
233
|
272
|
310
|
388
|
|
26.0
|
186
|
224
|
261
|
298
|
373
|
|
27.0
|
180
|
216
|
252
|
287
|
359
|
|
30.0
|
162
|
194
|
226
|
259
|
323
|
|
33.0
|
147
|
176
|
206
|
235
|
294
|
|
36.0
|
135
|
162
|
189
|
216
|
270
|
|
39.0
|
124
|
149
|
174
|
199
|
249
|
|
42.0
|
116
|
139
|
162
|
185
|
231
|
|
45.0
|
108
|
129
|
151
|
172
|
216
|
|
48.0
|
101
|
121
|
141
|
162
|
202
|
|
51.0
|
95
|
114
|
133
|
152
|
190
|
|
56.0
|
87
|
104
|
121
|
139
|
173
|
|
