List 9010: MAX Ball, Stub Length, 2 Flute List 9110: MAX Ball, Stub Length, 2 Flute List 9011: MAX Ball, Long Shank, 2 Flute List 9111: MAX Ball, Long Shank, 2 Flute MAX Maximum Performance End Mills for Hardened Steels
High Speed Light Milling
Hardness
<45 HRC
<50 HRC
<55 HRC
<60 HRC
<65 HRC
Work Material Cutting Speed
Hardened Steels
Hardened Steels
Hardened Steels
Hardened Steels
Hardened Steels
1,650 SFM
1,250 SFM
900 SFM
740 SFM
410 SFM
a a
a r
Dia D≤2 D≤4
Dia a r D≤4 0.05D 0.1D D≤10 0.10D 0.15D a a
a a=0.02D a r=0.1D
Depth of Cut
0.6D 0.1D 0.1D 0.15D 0.2D 0.2D
D≤10
Speed RPM 25,000 25,000 25,000 25,000 25,000 20,000 15,000
Feed in/min
Speed RPM 25,000 25,000 25,000 25,000 20,000 15,000 12,000
Feed in/min
Speed RPM 25,000 25,000 25,000 22,000 15,000 11,000
Feed in/min
Speed RPM 25,000 25,000 25,000 18,000 12,000
Feed in/min
Speed RPM 25,000 20,000 15,000 10,000
Feed in/min
Mill Dia.
1 2 3 4 6 8
100 175 175 159 157 138 125
85
76
60 87
19 63 57 53 47 41 38
150 150 135 133 117 106
130 130 130 118 104
105 105
94 83 75
6,600 5,000 4,000
9,000 7,200
10
8,750
94
1. Use a rigid and precise machine and holder. 2. When chattering occurs, reduce the speed and feed simultaneously. 3. Use a suitable cutting fluid with high smoke retardant.
High Speed Light Milling
Hardness
<45 HRC
<50 HRC
<55 HRC
<60 HRC
<65 HRC
Work Material Cutting Speed
Hardened Steels
Hardened Steels
Hardened Steels
Hardened Steels
Hardened Steels
1,600 SFM
1,300 SFM
1,000 SFM
790 SFM
430 SFM
Dia a r D≤1/16 0.6D 0.1D D≤1/8 0.1D 0.15D D≤3/8 0.2D 0.2D a a
Dia a r D≤1/8 0.05D 0.1D D≤3/8 0.10D 0.15D a a
a a=0.02D a r=0.1D
Depth of Cut
Speed RPM 25,000 25,000 25,000 25,000 25,000 20,000 15,000
Feed in/min
Speed RPM 25,000 25,000 25,000 25,000 20,000 15,000 12,000
Feed in/min
Speed RPM 25,000 25,000 25,000 17,000 15,000 11,000
Feed in/min
Speed RPM 25,000 25,000 25,000 16,000 12,000
Feed in/min
Speed RPM 25,000 20,000 15,000
Feed in/min
Mill Dia.
1/32 1/16
100 150 175 159 157 138 125
85
76
60 68
19 57 63 50 47 41 38
140 150 143 133 117 106
120 130 125 118 104
1/8
105 100
3/16
9,000 6,600 5,000 4,000
1/4
94 83 75
5/16
9,000 7,200
3/8
8,750
94
1. Use a rigid and precise machine and holder. 2. When chattering occurs, reduce the speed and feed simultaneously. 3. Use a suitable cutting fluid with high smoke retardant.
osgtool.com
1488
End Mill Technical
Powered by FlippingBook