HY-PRO ® CARB Performance Sub-Micrograin Carbide End Mills
List HP432
Slotting (Fractional)
Hardness
–
<20 HRC
20-30 HRC
30-38 HRC
38-45 HRC
45-55 HRC
55-60 HRC
Hardened Steels Pre-hardened Steels Ti Alloys (Solution Treated and Aged)
Hardened Steels Pre-hardened Steels Stainless Steels Inconel Ni Based Alloys
Alloy Steels Tool Steels Ti Alloys (Annealed)
Work Material
Mild Steels Carbon Steels
Hardened Steels
Hardened Steels
Cast Iron
Cutting Speed
360 SFM
330 SFM
260 SFM
220 SFM
180 SFM
120 SFM
80 SFM
a a
Dia a a D<1/16 0.01D 1/16≤D≤1/8 0.02D 1/8≤D 0.05D
Dia
Dia a a D<1/16 0.02D 1/16≤D 0.05D
Depth of Cut
D<1/16
0.1D 0.3D 0.5D
1/16≤D≤1/8
1/8≤D
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Mill Dia.
1/8
10,990 12.4 10,075 11.5
7,940 5,295 3,970 3,175 2,645 1,985 1,590 1,325
8.0
6,720 4,480 3,360 2,685 2,240 1,680 1,345 1,120
5.4 6.0 6.0 6.0 5.9 5.7 4.8 3.9 3.0
5,495 3,665 2,750 2,200 1,830 1,375 1,100
4.0 4.4 4.5 4.5 4.3 4.3 3.8 3.1 2.5
3,665 2,445 1,830 1,465 1,220
2.5 2.7 2.7 2.5 2.4 2.1 1.7 1.5 0.9
2,445 1,630 1,220
1.5 1.4 1.2 1.2 1.2 0.9 0.7 0.6 0.5
3/16
7,330 5,500 4,395 3,665 2,750 2,200 1,830 1,375
15.7 15.7 15.3 14.6 14.4 12.6 11.5
6,720 5,040 4,030 3,360 2,520 2,015 1,680 1,260
14.4 14.4 14.0 13.3 13.3 12.4 10.5
10.4 10.7 10.8 10.6 10.4
1/4
5/16
975 815 610 490 410 305
3/8 1/2 5/8 3/4
915 735 610 460
9.3 7.7 5.8
915 685
1
8.6
7.8
990
840
For side milling, increase feeds 20% to 50%.
Slotting (Metric)
Hardness
–
<20 HRC
20-30 HRC
30-38 HRC
38-45 HRC
45-55 HRC
55-60 HRC
Hardened Steels Pre-hardened Steels Ti Alloys (Solution Treated and Aged)
Hardened Steels Pre-hardened Steels Stainless Steels Inconel Ni Based Alloys
Alloy Steels Tool Steels Ti Alloys (Annealed)
Work Material
Mild Steels Carbon Steels
Hardened Steels
Hardened Steels
Cast Iron
Cutting Speed
360 SFM
330 SFM
260 SFM
220 SFM
180 SFM
120 SFM
80 SFM
a a
Dia a a D<1 0.01D 1≤D<3 0.02D 3≤D 0.05D
Dia D<1
Dia a a D<1 0.02D 1≤D 0.05D
0.1D 0.3D 0.5D
Depth of Cut
1≤D<3
3≤D
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Speed RPM
Feed in/min
Mill Dia.
3 4 5 6 8
11,635 12.4 10,665 11.4
8,400 6,300 5,040 4,200 3,150 2,520 2,100
7.8
7,110 5,330 4,265 3,555 2,665 2,135 1,775
5.2 7.0 7.4 7.4 7.0 7.0 7.0
5,815 4,365 3,490 2,910 2,180 1,745 1,454
3.9 5.0 5.6 5.6 5.6 5.3 5.3
3,880 2,910 2,325 1,940 1,455 1,165
2.5 2.9 3.2 3.2 2.9 2.9 2.6
2,585 1,940 1,550 1,295
1.5 1.7 1.7 1.4 1.4 1.4 1.1
8,725 6,980 5,815 4,365 3,490 2,910
14.7 19.7 19.3 18.4 17.4 17.4
8,000 6,400 5,330 4,000 3,200 2,665
13.5 17.9 17.6 16.7 15.8 15.8
10.5 13.4 13.4 13.4 13.1 13.1
970 775 645
10 12
970
For side milling, increase feeds 20% to 50%.
osgtool.com
1457
End Mill Technical
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