B278ATX Recommended Milling Conditions
Side Milling
GR.5 Hardened Steel （ 38~48HRC ）
GR.6 Hardened Steel （ 48 ～ 56HRC ）
GR.7 Hardened Steel （ 56 ～ 68HRC ）
Work Material
150
100
50
Vc m/min
RPM (min-1) 15,800 12,000
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
Code No.
Dc
B278ATX-3 B278ATX-4 B278ATX-5 B278ATX-6 B278ATX-8 B278ATX-10 B278ATX-12 B278ATX-16 B278ATX-20
3 4 5 6 8
1,200 1,300 1,300 1,200 1,100 1,100 1,065 1,000
10,500
820 800 850 820 750 745 740 730 700
3,800 2,650 2,250 2,200 1,650 1,300 1,100
120 135 140 175 185 165 145 170 170
8,000 6,300 5,300 4,000 3,200 2,700 2,000 1,600
9,500 8,000 6,000 4,800 4,000 3,000 2,400
10 12 16 20
840 670
955
ap:1.5D
ap:1.5D
ap:1.5D
Depth of Cut （ mm ） B265TX-10
ae:0.01D
ae:0.01D
ae:0.01D
High Speed Side Milling
GR.5 Hardened Steel （ 38~48HRC ）
GR.6 Hardened Steel （ 48 ～ 56HRC ）
GR.7 Hardened Steel （ 56 ～ 68HRC ）
Work Material
200
150
100
Vc m/min
RPM (min-1) 21,233 15,925 12,740 10,617
Feed (mm/min)
RPM (min-1) 15,925 11,944
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
Code No.
Dc
B278ATX-3 B278ATX-4 B278ATX-5 B278ATX-6 B278ATX-8 B278ATX-10 B278ATX-12 B278ATX-16 B278ATX-20
3 4 5 6 8
1,620 1,725 1,750 1,200 1,200
1,130 1,200 1,200
10,617
424 477 510 530 530 420 420 420 420
7,963 6,370 5,308 3,981 3,185 2,654 1,991 1,593
9,555 7,963 5,972 4,778 3,981 2,986 2,389
700 700 630 630 650 650
7,963 6,370 5,308 3,981 3,185
10 12 16 20
850 850 900 900
ap:1.5D
ap:1.5D
ap:1.5D
Depth of Cut （ mm ） B265TX-10
ae:0.01D
ae:0.01D
ae:0.01D
1. Please work with good rigidity / high precision facilities and collet chuck. 2. Please choose proper cutting fluid.
3. The cutting data is reference value only. Please adjust it according to your real working conditions. 4. If RPM is lower the reference value, the Feed rate (fz) and RPM should be reduced by the same proportion. 5. If vibration occurs during cutting, please reduce cutting parameter.
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