Page 827 - Iscar

USER GUIDE
ITS BORE

BHR Rough Boring Cutting Data

Boring Range Boring Range Boring Range
Workpiece Hardness Overhang ap (mm) D18-28 D28-50 D50-68
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 0.2-0.4 0.4 0.2-0.4 0.4-0.8
Vc (m/min) 140-160 90-120 150-180 100-130 160-200 140-180
2.5
●●● f (mm/rev) 0.08-0.18 0.08-0.15 0.08-0.2 0.08-0.18 0.1-0.25 0.1-0.15
Alloyed HB<200 Vc (m/min) 100-130 70-100 110-150 90-120 140-180 100-130
Steel 4 ●● f (mm/rev) 0.08-0.15 0.06-0.12 0.08-0.18 0.08-0.15 0.8-0.18 0.08-0.12
Vc (m/min) 80-100 60-90 80-100 70-90 100-140 80-120
6.3
● f (mm/rev) 0.08-0.15 0.06-0.1 0.06-0.12 0.06-0.12 0.6-0.15 0.08-0.1
P
2.5 Vc (m/min) 130-150 120-140 130-150 120-140 140-170 120-150
●●● f (mm/rev) 0.08-0.18 0.06-0.15 0.08-0.18 0.06-0.15 0.08-0.2 0.08-0.18
Alloyed HB>200 Vc (m/min) 100-130 100-120 100-130 100-120 120-150 100-120
Steel 4 ●● f (mm/rev) 0.08-0.15 0.06-0.13 0.08-0.15 0.06-0.13 0.08-0.18 0.08-0.15
Vc (m/min) 80-100 70-90 80-100 70-90 100-120 70-90
6.3
● f (mm/rev) 0.08-0.12 0.06-0.11 0.08-0.12 0.06-0.11 0.08-0.12 0.06-0.11

Boring Range Boring Range Boring Range
Workpiece Hardness Overhang ap (mm) D68-120 D120-200 D200-500
Material HB L/D R (Radius) 1.8 2.5 0.8-2.0 2.0-3.5 0.8-2.0 2.0-4.0
0.2-0.4 0.4-0.8 0.2-0.4 0.4-0.8 0.2-0.4 0.4-0.8
ISO
Vc (m/min) 160-220 140-180 160-220 140-180 160-220 140-180
2.5
●●● f (mm/rev) 0.1-0.3 0.1-0.25 0.1-0.3 0.1-0.25 0.1-0.35 0.1-0.3
Alloyed HB<200 4 Vc (m/min) 150-200 120-160 120-160 120-160 N.R N.R
Steel ●● f (mm/rev) 0.1-0.2 0.08-0.18 0.1-0.2 0.08-0.18
Vc (m/min) 100-140 100-140
6.3 N.R N.R N.R N.R
● f (mm/rev) 0.08-0.18 0.08-0.15
P Vc (m/min) 160-200 140-180 140-200 140-180 140-200 140-180
2.5
●●● f (mm/rev) 0.1-0.3 0.01-0.25 0.01-0.35 0.01-0.3 0.01-0.35 0.01-0.3
Alloyed Vc (m/min) 140-160 120-140 150-180 120-140
4
Steel HB>200 ●● f (mm/rev) 0.08-0.2 0.08-0.15 0.08-0.12 0.08-0.12 N.R N.R
Vc (m/min) 100-120 70-90
6.3 N.R N.R N.R N.R
● f (mm/rev) 0.08-0.16 0.08-0.12
N.R. = Not Recommended
Stability
– Good
●●●
●● – Normal
● – Poor

Ø
Ø Ø

A A
A1 A
IHSR IHSR PLT IHSR
IHSR
IHCR IHSR

L

D

In case of a single or a stepped boring cutter configuration, only half the feed should be applied.

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