Page 830 - Iscar

USER GUIDE
ITS BORE BHR Rough Boring Cutting Data

D18-28
D28-50
D50-68
Workpiece Hardness Overhang ap (mm) Boring Range Boring Range Boring Range
Material HB L/D R (Radius) 0.5-1.0 1.0-1.8 0.5-1.0 1.0-1.8 0.5-1.2 1.2-2.0
ISO 0.2-0.4 0.4 0.2-0.4 0.4 0.2-0.4 0.4-0.8
Vc (m/min) 120-160 100-140 120-180 110-150 120-180 110-150
2.5
●●● f (mm/rev) 0.06-0.15 0.06-0.18 0.06-0.15 0.06-0.12 0.08-0.2 0.08-0.12
Grey Vc (m/min) 100-140 80-120 100-150 80-120 100-150 80-120
Cast Iron HB<200 4
GG 10-25 ●● f (mm/rev) 0.06-0.12 0.06-0.1 0.06-0.12 0.06-0.1 0.08-0.12 0.08-0.1
Vc (m/min) 70-100 60-90 70-100 60-90 70-100 60-90
6.3
● f (mm/rev) 0.06-0.1 0.06-0.1 0.06-0.1 0.06-0.1 0.08-0.1 0.08-0.1
Vc (m/min) 140-200 140-200 140-220 160-250 180-220 200-280
2.5
●●● f (mm/rev) 0.06-0.15 0.06-0.18 0.06-0.15 0.06-0.18 0.08-0.2 0.1-0.25
Grey
120-180
140-200
140-180
120-160
120-160
K Cast Iron 4 Vc (m/min) 0.06-0.12 0.06-0.14 0.06-0.12 0.06-0.14 0.08-0.12 180-220
f (mm/rev)
0.08-0.2
GG 25-40 ●●
Vc (m/min) 70-100 60-90 70-100 60-90 60-100 60-120
6.3
● f (mm/rev) 0.06-0.1 0.06-0.1 0.06-0.1 0.06-0.1 0.08-0.1 0.08-0.1
Vc (m/min) 120-180 120-180 120-200 140-220 180-220 180-240
2.5
●●● f (mm/rev) 0.06-0.15 0.06-0.18 0.06-0.15 0.06-0.18 0.08-0.18 0.1-0.2
Cast Iron Spheroidal 4 Vc (m/min) 120-160 120-160 120-180 140-200 140-200 160-220
GGG & Graphite ●● f (mm/rev) 0.06-0.12 0.06-0.14 0.06-0.12 0.06-0.14 0.08-0.12 0.08-0.18
Vc (m/min) 60-100 60-90 60-100 60-90 60-90 60-100
6.3
● f (mm/rev) 0.06-0.1 0.06-0.1 0.06-0.1 0.06-0.1 0.08-0.1 0.08-0.1
Boring Range Boring Range Boring Range
Workpiece Hardness Overhang ap (mm) D68-120 D120-200 D50-68
Material HB L/D R (Radius) 0.8-1.8 1.8-2.5 0.8-2.0 2.0-3.0 0.8-2.0 2.0-3.5
ISO 0.2-0.4 0.4-0.8 0.2-0.4 0.4-0.8 0.2-0.4 0.4-0.8
Vc (m/min) 120-200 110-150 150-250 180-280 150-250 180-280
2.5
●●● f (mm/rev) 0.08-0.25 0.08-0.3 0.08-0.25 0.08-0.35 0.08-0.25 0.08-0.35
Grey
Cast Iron HB<200 4 Vc (m/min) 100-150 80-120 120-170 120-170 N.R N.R
GG 10-25 ●● f (mm/rev) 0.08-0.18 0.08-0.2 0.08-0.18 0.08-0.25
Vc (m/min) 70-100 60-90
6.3 N.R N.R N.R N.R
● f (mm/rev) 0.08-0.15 0.08-0.12
Vc (m/min) 250-300 250-350 250-350 250-350 250-350 250-350
2.5
●●● f (mm/rev) 0.12-0.35 0.12-0.35 0.15-0.3 0.15-0.4 0.15-0.3 0.15-0.4
Grey
200-270
K Cast Iron 4 4 Vc (m/min) 200-270 230-300 200-300 0.15-0.35 N.R N.R
0.1-0.25
0.12-0.3
f (mm/rev)
0.15-0.3
GG 25-40 ●●
Vc (m/min) 70-150 60-120
6.3 N.R N.R N.R N.R
● f (mm/rev) 0.1-0.15 0.12-0.25
Vc (m/min) 200-240 200-280 200-280 220-300 220-300 220-300
2.5
●●● f (mm/rev) 0.12-0.3 0.12-0.3 0.15-0.3 0.15-0.35 0.15-0.3 0.15-0.35
Cast Iron Spheroidal 4 Vc (m/min) 160-220 180-240 180-250 200-270 N.R N.R
GGG & Graphite ●● f (mm/rev) 0.1-0.2 0.12-0.25 0.12-0.2 0.15-0.35
Vc (m/min) 60-100 60-100
6.3 N.R N.R N.R N.R
● f (mm/rev) 0.1-0.15 0.12-0.2
N.R. = Not Recommended
Stability
– Good
●●●
●● – Normal
● – Poor
L
D
In case of a single or a stepped boring cutter configuration, only half the feed should be applied.

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