Variable Flute Speeds and Feeds in SFPM for Steel
(Surface Feet per Minute)
Mild Steel |
|
Slotting |
Profiling |
|
Depth of Slot |
Width of Cut |
|
% of Dia. |
% of Dia. |
Axial |
Conservative |
Moderate |
Aggressive |
Conservative |
Moderate |
Aggressive |
Radial |
|
50% |
500 |
550 |
700 |
550 |
600 |
750 |
15% |
|
100% |
400 |
500 |
550 |
500 |
550 |
700 |
25% |
|
150% |
350 |
450 |
500 |
400 |
500 |
550 |
50% |
Medium Alloys |
|
Slotting |
Profiling |
|
Depth of Slot |
Width of Cut |
|
% of Dia. |
% of Dia. |
Axial |
Conservative |
Moderate |
Aggressive |
Conservative |
Moderate |
Aggressive |
Radial |
|
50% |
350 |
425 |
500 |
300 |
330 |
400 |
15% |
|
100% |
250 |
350 |
450 |
350 |
425 |
500 |
25% |
|
150% |
250 |
325 |
375 |
250 |
350 |
450 |
50% |
Titanium and Stainless Steels |
|
Slotting |
Profiling |
|
Depth of Slot |
Width of Cut |
|
% of Dia. |
% of Dia. |
Axial |
Conservative |
Moderate |
Aggressive |
Conservative |
Moderate |
Aggressive |
Radial |
|
50% |
150 |
200 |
250 |
200 |
250 |
300 |
15% |
|
100% |
125 |
175 |
225 |
150 |
200 |
250 |
25% |
|
150% |
*** |
*** |
*** |
125 |
175 |
225 |
50% |
CHIPLOAD PER TOOTH BY DIAMETER
0.250 0.3125 0.375 0.500 0.625 0.750 1.000
.0008-.0015 .001-.0018 .001-.002 .001-.003 .0015-.003 .002-.004 .002-.005
The above are recommended starting points for
regular flute lengths – adjust for extended flute lengths.
Due to high metal removal rates, your machining set up should be as rigid as possible.