| Cutting Condition Chart # 5 - 4 Flute End Mills |
| Suggested Speeds and Feeds |
| Slotting (Fractional) |
|
Work
Material
|
Aluminum
|
Cast Iron
|
Medium
Carbon Steel
Mild Steel
|
Pre-hardened,
Stainless Die
& Alloy Steels
|
Pre-hardened,
Stainless Die
& Alloy Steels
|
Hardened
Steels
|
|
Hardness
|
|
|
|
<HRC30
|
HRC30-40
|
HRC40-50
|
|
Depth
of Cut
|
 |
|
up to 1/32 Ad =0.2D
from 1/32 to 5/64 Ad= 0.3D
over 5/64 Ad=0.5D |
|
|
Mill
Diameter
(inch)
|
V=330 SFM
|
V=100-150 SFM
|
V=100-130 SFM
|
V=65-100 SFM
|
V=65-82 SFM
|
V=43 SFM
|
|
Speed
|
Feed
|
Speed
|
Feed
|
Speed
|
Feed
|
Speed
|
Feed
|
Speed
|
Feed
|
Speed
|
Feed
|
|
RPM
|
IPM
|
RPM
|
IPM
|
RPM
|
IPM
|
RPM
|
IPM
|
RPM
|
IPM
|
RPM
|
IPM
|
|
.030
|
40000
|
11.0
|
16000
|
6.9
|
14000
|
3.5
|
8000
|
1.4
|
8000
|
0.8
|
6000
|
0.4
|
|
3/64
|
31500
|
11.0
|
14000
|
7.9
|
12500
|
4.1
|
7500
|
1.7
|
7000
|
0.8
|
4800
|
0.4
|
|
1/16
|
21200
|
11.0
|
9500
|
7.9
|
8500
|
4.9
|
6500
|
2.0
|
5000
|
1.1
|
3200
|
0.6
|
|
5/64
|
16000
|
16.5
|
7100
|
8.3
|
6300
|
5.5
|
5000
|
3.3
|
4000
|
1.7
|
2400
|
0.9
|
|
1/8
|
11200
|
16.5
|
4750
|
8.9
|
4250
|
5.5
|
3200
|
4.3
|
2600
|
1.7
|
1600
|
0.9
|
|
5/32
|
8000
|
16.5
|
3550
|
8.9
|
3150
|
5.5
|
2400
|
4.3
|
2000
|
1.7
|
1200
|
0.9
|
|
3/16
|
6300
|
16.5
|
2800
|
8.9
|
2500
|
5.5
|
2000
|
4.3
|
1600
|
1.7
|
950
|
0.9
|
|
1/4
|
5300
|
16.5
|
2360
|
11.0
|
2120
|
5.5
|
1600
|
4.3
|
1300
|
1.7
|
800
|
0.9
|
|
5/16
|
4000
|
16.5
|
1800
|
13.0
|
1600
|
5.5
|
1200
|
4.3
|
1000
|
1.7
|
600
|
0.9
|
|
3/8
|
3150
|
16.5
|
1400
|
13.0
|
1250
|
5.5
|
1000
|
4.3
|
800
|
1.7
|
480
|
0.9
|
|
1/2
|
2650
|
16.5
|
1180
|
13.0
|
1060
|
5.5
|
820
|
4.3
|
700
|
1.7
|
400
|
0.9
|
|
5/8
|
2000
|
16.5
|
900
|
13.0
|
800
|
5.5
|
640
|
4.7
|
500
|
2.0
|
300
|
0.7
|
|
3/4
|
1600
|
16.5
|
710
|
13.0
|
630
|
5.5
|
500
|
4.7
|
400
|
2.0
|
240
|
0.6
|
|
1
|
1250
|
16.5
|
560
|
13.0
|
500
|
5.5
|
400
|
4.7
|
320
|
2.0
|
190
|
0.4
|
| Cutting Condition Chart # 4 - 2 & 3 Flute End Mills |
| Suggested Speeds and Feeds |
| Slotting (Fractional) |
|
Work
Material
|
Aluminum
|
Cast Iron
|
Medium
Carbon Steel
Mild Steel
|
Pre-hardened,
Stainless Die,
& Alloy Steels
|
Pre-hardened,
Stainless Die,
& Alloy Steels
|
Hardened
Steels
|
|
Hardness
|
|
|
|
<HRC30
|
HRC30-40
|
HRC40-50
|
|
Depth of
Cut
|
|
|
up to 1/32 Ad =0.2D
from 1/32 to 5/64 Ad= 0.3D
over 5/64 Ad=0.5D |
|
|
Mill
Diameter
(inch)
|
V=330 SFM
|
V=100-150 SFM
|
V=100-130 SFM
|
V=65-100 SFM
|
V=65-82 SFM
|
V=43 SFM
|
|
Speed
|
Feed
|
Speed
|
Feed
|
Speed
|
Feed
|
Speed
|
Feed
|
Speed
|
Feed
|
Speed
|
Feed
|
|
RPM
|
IPM
|
RPM
|
IPM
|
RPM
|
IPM
|
RPM
|
IPM
|
RPM
|
IPM
|
RPM
|
IPM
|
|
.015
|
100000
|
7.1
|
31500
|
3.9
|
30000
|
1.4
|
22400
|
0.7
|
21200
|
0.5
|
16000
|
0.3
|
|
.020
|
62000
|
7.9
|
22400
|
4.9
|
19000
|
1.6
|
13000
|
0.8
|
12000
|
0.6
|
9500
|
0.3
|
|
.030
|
40000
|
7.9
|
16000
|
4.9
|
14000
|
2.5
|
8000
|
1.0
|
8000
|
0.6
|
6000
|
0.3
|
|
3/64
|
31500
|
7.9
|
14000
|
5.5
|
12500
|
3.0
|
7500
|
1.2
|
7000
|
0.6
|
4800
|
0.3
|
|
1/16
|
21200
|
7.9
|
9500
|
5.5
|
8500
|
3.5
|
6500
|
1.4
|
5000
|
0.8
|
3200
|
0.4
|
|
5/64
|
16000
|
11.8
|
7100
|
5.9
|
6300
|
3.9
|
5000
|
2.4
|
4000
|
1.2
|
2400
|
0.6
|
|
1/8
|
11200
|
11.8
|
4750
|
6.3
|
4250
|
3.9
|
3200
|
3.1
|
2600
|
1.2
|
1600
|
0.6
|
|
5/32
|
8000
|
11.8
|
3550
|
6.3
|
3150
|
3.9
|
2400
|
3.1
|
2000
|
1.2
|
1200
|
0.6
|
|
3/16
|
6300
|
11.8
|
2800
|
6.3
|
2500
|
3.9
|
2000
|
3.1
|
1600
|
1.2
|
950
|
0.6
|
|
1/4
|
5300
|
11.8
|
2360
|
7.9
|
2120
|
3.9
|
1600
|
3.1
|
1300
|
1.2
|
800
|
0.6
|
|
5/16
|
4000
|
11.8
|
1800
|
9.3
|
1600
|
3.9
|
1200
|
3.1
|
1000
|
1.2
|
600
|
0.6
|
|
3/8
|
3150
|
11.8
|
1400
|
9.3
|
1250
|
3.9
|
1000
|
3.1
|
800
|
1.2
|
480
|
0.6
|
|
1/2
|
2650
|
11.8
|
1180
|
9.3
|
1060
|
3.9
|
820
|
3.1
|
700
|
1.2
|
400
|
0.6
|
|
5/8
|
2000
|
11.8
|
900
|
9.3
|
800
|
3.9
|
640
|
3.3
|
500
|
1.5
|
300
|
0.5
|
|
3/4
|
1600
|
11.8
|
710
|
9.3
|
630
|
3.9
|
500
|
3.3
|
400
|
1.5
|
240
|
0.4
|
|
1
|
1250
|
11.8
|
560
|
9.3
|
500
|
3.9
|
400
|
3.3
|
320
|
1.5
|
190
|
0.3
|
