Page 478 - ISCAR(HOLE_MAKING_CATALOG_65)

USER GUIDE
ITS BORE BHR Rough Boring Cutting Data Boring Range Boring Range Boring Range

50-68
28-50
18-28
Overhang
ap (mm)
ISO Workpiece Hardness LDRED/BDRED RE (Radius) 0.5-1.5 1.5-2.5 0.5-1.5 1.5-2.5 0.5-2.0 1.2-3.0
HB
0.2-0.4
0.4
0.4-0.8
0.2-0.4
0.2-0.4
0.4
Material
2.5 Vc (m/min) 200-300 240-350 200-300 240-350 200-300 240-35
••• 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
Aluminum >12si 4 Vc (m/min) 150-220 150-220 150-220 150-220 150-220 150-220
/ Cast •• 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) 60-100 60-100 60-100 60-100 60-100 60-100
• 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
N
2.5 Vc (m/min) 180-250 220-280 180-250 220-280 180-250 220-280
••• f (mm/rev) 0.06-0.2 0.06-0.25 0.06-0.25 0.06-0.25 0.06-0.25 0.06-0.3
Aluminum <12si 4 Vc (m/min) 120-220 120-220 120-220 120-220 120-220 120-220
/ Cast •• 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) 60-100 60-100 60-100 60-100 60-100 60-100
• 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
Boring Range Boring Range Boring Range
68-120 120-200 200-500
Workpiece Hardness Overhang ap (mm) 0.8-3.0 1.8-4.0 0.8-3.0 2.0-4.0 0.8-3.0 2.0-4.5
ISO Material HB LDRED/BDRED RE (Radius) 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 Vc (m/min) 200-300 240-350 200-300 240-350 200-300 240-350
••• f (mm/rev) 0.06-0.25 0.06-0.3 0.06-0.25 0.06-0.4 0.06-0.25 0.06-0.4
Aluminum >12si 4 Vc (m/min) 150-220 150-220 150-220 150-220 N.R N.R
/ Cast •• f (mm/rev) 0.06-0.2 0.06-0.2 0.06-0.2 0.06-0.2
6.3 Vc (m/min) 60-100 60-100 N.R N.R N.R N.R
• f (mm/rev) 0.06-0.1 0.06-0.1
N
2.5 Vc (m/min) 180-250 220-280 180-250 220-280 180-250 220-280
••• f (mm/rev) 0.06-0.25 0.06-0.3 0.06-0.3 0.06-0.4 0.06-0.3 0.06-0.4
Aluminum 4 Vc (m/min) 120-220 120-220 120-220 120-220
/ Cast <12si •• f (mm/rev) 0.06-0.2 0.06-0.2 0.06-0.2 0.06-0.2 N.R N.R
6.3 Vc (m/min) 60-100 60-100 N.R N.R N.R N.R
• f (mm/rev) 0.06-0.1 0.06-0.1
N.R. = Not Recommended
Stability
••• Good
•• Normal
• Poor

Cutting Conditions

Cutting Conditions for BHR Rough Boring Heads
Ø Ø

A A
A1 A
IHSR
IHSR IHSR
IHCR IHSR
Twin boring cutters with the same cutting diameter Twin boring cutters with different cutting diameters and heights (Z=1)
B Working Range ap Steel ap Cast Iron, Aluminum
BDRED
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
B ap 68-200 ap - 4-5 ap - 5-7
200-500 ap - 5-6 ap - 6-8
It’s advisable to start with B hole≥boring bar diameter d

476 ISCAR