Speeds and feeds
4 Flute Gorilla Mills, Recommended RPM and Feed Rates for TiAlN Coated :
Full Slotting Conditions
| Work Piece Material |
SFM |
1/4" |
5/16" |
3/8" |
7/16" |
1/2" |
5/8" |
3/4" |
1" |
| RPM |
IPM |
RPM |
IPM |
RPM |
IPM |
RPM |
IPM |
RPM |
IPM |
RPM |
IPM |
RPM |
IPM |
RPM |
IPM |
| Gray Cast Iron |
500 |
7640 |
30.5 |
6112 |
31.7 |
5093 |
30.5 |
4365 |
29.7 |
3820 |
30.5 |
3056 |
36.7 |
2546 |
35.6 |
1910 |
30.6 |
| Soft Steels (>25 Rc) |
600 |
9168 |
36.6 |
7334 |
38.1 |
6112 |
36.6 |
5238 |
35.6 |
4584 |
36.6 |
3667 |
36.7 |
3056 |
36.7 |
2292 |
32.1 |
| Alloy Steels (4140 ) |
300 |
4584 |
27.0 |
3667 |
29.0 |
3056 |
30.5 |
2619 |
29.3 |
2292 |
28.4 |
1833 |
25.7 |
1528 |
22.6 |
1146 |
18.3 |
| Tool Steels (A2,D2) |
180 |
2750 |
13.2 |
2200 |
13.2 |
1833 |
14.6 |
1571 |
14.2 |
1375 |
13.8 |
1100 |
13.2 |
916 |
12.5 |
687 |
11.0 |
| Die Steels (H13,P20) |
200 |
3056 |
18.3 |
2444 |
17.6 |
2037 |
16.3 |
1746 |
16.7 |
1528 |
17.1 |
1222 |
16.1 |
1018 |
15.4 |
764 |
12.8 |
| Stainless Steel (303) |
250 |
3820 |
12.2 |
3056 |
14.6 |
2546 |
14.3 |
2182 |
14.0 |
1910 |
13.8 |
1528 |
12.9 |
1273 |
12.8 |
955 |
11.4 |
| Difficult Stainless St. |
200 |
3056 |
7.3 |
2444 |
8.8 |
2037 |
9.7 |
1746 |
9.8 |
1528 |
10.3 |
1222 |
10.0 |
1018 |
10.0 |
764 |
9.0 |
| High Temp. Alloys |
100 |
1528 |
4.3 |
1222 |
4.8 |
1018 |
4.9 |
873 |
4.9 |
764 |
4.9 |
611 |
5.1 |
509 |
5.1 |
382 |
5.0 |
| Titanium |
130 |
1986 |
4.8 |
1589 |
5.7 |
1324 |
5.8 |
1135 |
5.9 |
993 |
6.3 |
794 |
6.4 |
662 |
6.4 |
496 |
6.0 |
* Speeds and Feeds are based on slotting conditions with depth of cut equal to the diameter of the end mill.
4 Flute Gorilla Mills, Recommended Chimp Loads Per Tooth:
| Work Piece Material |
1/8" |
3/16" |
1/4" |
5/16" |
3/8" |
1/2" |
5/8" |
3/4" |
1" |
| Gray Cast Iron |
0.0008 |
0.0010 |
0.0012 |
0.0015 |
0.0015 |
0.0020 |
0.0030 |
0.0035 |
0.0040 |
| Soft Steel > 25 Rc |
0.0006 |
0.0008 |
0.0010 |
0.0012 |
0.0015 |
0.0020 |
0.0025 |
0.0030 |
0.0035 |
| Alloy Steel 4140 ect. |
0.0005 |
0.0008 |
0.0010 |
0.0015 |
0.0018 |
0.0030 |
0.0025 |
0.0028 |
0.0040 |
| Tool Steel A2,D2,S7 |
0.0005 |
0.0007 |
0.0012 |
0.0015 |
0.0020 |
0.0025 |
0.0030 |
0.0034 |
0.0040 |
| Die Steel H13, P20 |
0.0005 |
0.0010 |
0.0015 |
0.0018 |
0.0020 |
0.0028 |
0.0033 |
0.0038 |
0.0042 |
| Stainless Steel 303 |
0.0006 |
0.0006 |
0.0008 |
0.0012 |
0.0014 |
0.0018 |
0.0021 |
0.0025 |
0.0030 |
| Difficult Stainless Steel |
0.0005 |
0.0005 |
0.0007 |
0.0010 |
0.0012 |
0.0017 |
0.0020 |
0.0024 |
0.0028 |
| High Temperature Alloys |
0.0004 |
0.0005 |
0.0007 |
0.0010 |
0.0012 |
0.0015 |
0.0021 |
0.0025 |
0.0032 |
| Titanium |
0.0005 |
0.0005 |
0.0006 |
0.0009 |
0.0011 |
0.0014 |
0.0020 |
0.0024 |
0.0030 |
* Note: When profiling these types of material we recommend using the 5 flute Gorilla Mill and running at 20% faster feed rates.
Gorilla Mill® Silverback, Recommended RPM's, IPM's and Chimp Loads Per Tooth for Nonferrous Machining:
| SFM |
1/4" |
5/16" |
3/8" |
1/2" |
5/8" |
3/4" |
1.0" |
| |
RPM / IPM / CLPT |
RPM / IPM / CLPT |
RPM / IPM / CLPT |
RPM / IPM / CLPT |
RPM / IPM / CLPT |
RPM / IPM / CLPT |
RPM / IPM / CLPT |
| 1300 |
19864 / 89.3 / .0015 |
15891 / 95.3 / .0020 |
13242 / 99.3 / .0025 |
9932 / 89.4 / .0030 |
7945 / 95.3 / .0040 |
6621 / 99.3 / .0050 |
4966 / 89.3 / .0060 |
*NOTE: The above information is based on 1x diameter for slotting.
**Please adjust RPM's based on percentage of silicon content.
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Slotting (4 Flute)