SUMIBORON CBN Insert
Indexable Insert
Round
R
: 1st Recommended : 2nd Recommended
: 1st Recommended : 2nd Recommended
: 1st Recommended : 2nd Recommended
(Legend) Continuous Cutting
General Cutting
Interrupted Cutting
K Cast Iron S Exotic Alloy H Hardened Steel Sintered Components
RNG Uncoated
Recommended Application
Q
Inscribed Circle .3750 to .5000 Hole Dia.
Dimensions (inch)
Thickness
.1250 to .1875
L
L108
Applicable External Holders
Uncoated CBN
Solid / Negative (Without Hole)
Nose Radius RE
No. of Cutting Edges
Pcs/ Pack
Cutting Edge Specification
Sumitomo Cat. No.
ISO Cat. No.
Shape
RNG32
RNGN090300
.1875 QQQQQQQQQQQQQ D Q
Standard
1 Solid
RNG32B
RNGN090300-B
D
D
.1875
Full Top
Standard
1
RNG32F
RNGN090300LF
.1875 QQQQQQQQQQQQQ « Q
Sharp Edge
1 Solid
C
Low Cutting Force
RNG42
RNGN120300
.2500 QQQQQQQQQQQQQ D Q
Standard
1 Solid
RNG42F
RNGN120300LF
D
«
.2500
1 Solid
Sharp Edge
Low Cutting Force
RNG43
RNGN120400
.2500 QQQQQQQQQQQQQ D Q
R
Standard
1 Solid
RNG43B
RNGN120400-B
D
D D F
.2500
Full Top
Standard
1
S
K Cast Iron S Exotic Alloy H Hardened Steel Sintered Components
RNG Coated
Recommended Application
T
Q
Inscribed Circle .2500 to .3750 Hole Dia.
Dimensions (inch)
Thickness
.1250
Coated CBN
V
Nose Radius RE
No. of Cutting Edges
Pcs/ Pack
Cutting Edge Specification
Shape
Sumitomo Cat. No.
ISO Cat. No.
W
RNG22-S RNG32-S
RNGN060300-S RNGN090300-S
D
.1250
Standard
1 Solid
D
.1875
CBN Application Range Map
(C) Gray Cast Iron
(D) Ductile Cast Iron
(E) General Powdered Metal
(F) High-density Powdered Metal
(G) Titanium Alloy
2,000
500
300
300
300
1,500
400
200
200
BNC500
200
BN7000
1,000
300
BN7500
( m/min ) v c
( m/min ) v c
( m/min ) v c
( m/min ) v c
BN7500
( m/min ) v c
BNS800
BN7000
NCB100
100
100
100
BN7000
200
500
BN500
BN7000
0
0.05 0.10 0.15 0.20 Feed Rate f (mm/rev)
Depth of Cut a p ( mm ) Feed Rate f ( mm / rev )
Depth of Cut a p ( mm ) Feed Rate f ( mm / rev )
0 0.1 0.3 0.5
0 1.0 2.0 3.0 4.0
0 0.1
0.15 0.05 0.1 0.2 0.25 0.3 0.2 0.3 0.4 0.5
0 0.1
0.05 0.1 0.15 0.2 0.25 0.3 0.2 0.3 0.4 0.5
p (mm)
Depth of Cut a
Depth of Cut a
p (mm)
L61
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