Page 94 - HOLE MAKING CATALOG p383-544

ITS BORE USER GUIDE

ISOBHR Rough Boring Cutting Data

Boring Range Boring Range Boring Range
18-28 28-50 50-68

Workpiece Hardness Overhang ap (mm) 0.5-1.5 1.5-2.5 0.5-1.5 1.5-2.5 0.5-2.0 1.2-3.0
Material HB LDRED/BDRED RE (Radius)
>12si Vc (m/min) 0.2-0.4 0.4 0.2-0.4 0.4 0.2-0.4 0.4-0.8
Aluminum 2.5
/ Cast <12si f (mm/rev) 200-300 240-350 200-300 240-350 200-300 240-35
••• Vc (m/min)
N f (mm/rev) 0.06-0.2 0.06-0.25 0.06-0.2 0.06-0.25 0.06-0.25 0.06-0.3
4 Vc (m/min)
Aluminum f (mm/rev) 150-220 150-220 150-220 150-220 150-220 150-220
/ Cast •• Vc (m/min)
f (mm/rev) 0.06-0.2 0.06-0.2 0.06-0.2 0.06-0.2 0.06-0.2 0.06-0.2
6.3 Vc (m/min)
f (mm/rev) 60-100 60-100 60-100 60-100 60-100 60-100
• Vc (m/min)
f (mm/rev) 0.06-0.1 0.06-0.1 0.06-0.1 0.06-0.1 0.06-0.1 0.06-0.1
2.5
ap (mm) 180-250 220-280 180-250 220-280 180-250 220-280
••• RE (Radius)
Vc (m/min) 0.06-0.2 0.06-0.25 0.06-0.25 0.06-0.25 0.06-0.25 0.06-0.3
4
f (mm/rev) 120-220 120-220 120-220 120-220 120-220 120-220
•• Vc (m/min)
f (mm/rev) 0.06-0.2 0.06-0.2 0.06-0.2 0.06-0.2 0.06-0.2 0.06-0.25
6.3 Vc (m/min)
f (mm/rev) 60-100 60-100 60-100 60-100 60-100 60-100
• Vc (m/min)
f (mm/rev) 0.06-0.1 0.06-0.1 0.06-0.1 0.06-0.1 0.06-0.1 0.06-0.1
Vc (m/min)
f (mm/rev) Boring Range Boring Range Boring Range
Vc (m/min) 68-120 120-200 200-500
f (mm/rev)
ISO Workpiece Hardness Overhang 0.8-3.0 1.8-4.0 0.8-3.0 2.0-4.0 0.8-3.0 2.0-4.5
LDRED/BDRED
Material HB 0.2-0.4 0.4-0.8 0.2-0.4 0.4-0.8 0.2-0.4 0.4-0.8
2.5
200-300 240-350 200-300 240-350 200-300 240-350
•••
0.06-0.25 0.06-0.3 0.06-0.25 0.06-0.4 0.06-0.25 0.06-0.4
4
Aluminum >12si 150-220 150-220 150-220 150-220 N.R N.R
/ Cast ••
0.06-0.2 0.06-0.2 0.06-0.2 0.06-0.2
6.3
60-100 60-100 N.R N.R N.R N.R
•
N 0.06-0.1 0.06-0.1 180-250 220-280
2.5 0.06-0.3 0.06-0.4
180-250 220-280 180-250 220-280
••• 0.06-0.3 0.06-0.4 N.R N.R
0.06-0.25 0.06-0.3 120-220 120-220
4 0.06-0.2 0.06-0.2
Aluminum <12si 120-220 120-220
/ Cast ••
0.06-0.2 0.06-0.2
6.3
60-100 60-100 N.R N.R N.R N.R
•
0.06-0.1 0.06-0.1

N.R. = Not Recommended
Stability

••• Good
•• Normal
• Poor

Cutting Conditions Ø
Cutting Conditions for BHR Rough Boring Heads

Ø

A A A1 A
IHSR IHSR

IHCR IHSR

Twin boring cutters with the same cutting diameter Twin boring cutters with different cutting diameters and heights (Z=1)

BDRED B Working Range ap Steel ap Cast Iron, Aluminum
B ap 18-28 ap - 1.5-2 ap - 2-2.5
28-50 ap - 2-3 ap - 2.5-3.5
50-68 ap - 3-4 ap - 3.5-5
68-200 ap - 4-5 ap - 5-7
ap - 5-6 ap - 6-8
200-500

It’s advisable to start with B hole≥boring bar diameter d

476 ISCAR