SUMIBORON CBN Insert
Indexable Insert
D 55° Diamond DNMA44 Uncoated Dimensions (inch) Inscribed Circle .5000 Hole Dia. Thickness .2500
: 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
Recommended Application
.2031
L
C10 , C12
E19
Applicable External Holders
Applicable Internal Holders
Uncoated CBN
Single-Use / Negative (With Hole)
Effective Cutting Edge Length LE
Nose Radius RE
No. of Cutting Edges
Pcs/ Pack
Cutting Edge Specification
Shape
Sumitomo Cat. No.
ISO Cat. No.
NUDNMA441 NUDNMA442 NUDNMA443
NU-DNMA150604 NU-DNMA150608 NU-DNMA150612
.0156 .0984
.0313 .0827
Standard
1 1
.0469 .0787
*Use NS (NS-DNMA) for BNX25. *Depth of cut for single-use types is 0.0197 inch or less.
: 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
DNGA44 Coated Dimensions (inch) Thickness .2500
Recommended Application
C
Inscribed Circle .5000 Hole Dia.
.2031
C10 , C12
E19
Applicable External Holders
Applicable Internal Holders
Coated CBN
Multi-Cornered Single-Use / Negative (With Hole)
D
Effective Cutting Edge Length LE
Nose Radius RE
No. of Cutting Edges
Pcs/ Pack
Cutting Edge Specification
Shape
Sumitomo Cat. No.
ISO Cat. No.
R
4NCDNGA441 4NCDNGA442 4NCDNGA443
4NC-DNGA150604 4NC-DNGA150608 4NC-DNGA150612
.0156 .0984
.0313 .0827
1 4
Standard
.0469 .0787
S
T
V
W
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
200
BNC500
BN7000
1,000
300
BN7500
BN7500
NCB100
BNS800
BN7000
100
100
100
( m/min ) v c
200
500
BN7000
BN500
( m/min ) v c
BN7000
( m/min ) v c
( m/min ) v c
( m/min ) v c
0
0.05 0.10 0.15 0.20 Feed Rate f (mm/rev)
0 0.1 0.3 0.5
0 1.0 2.0 3.0 4.0
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
0.15 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
Depth of Cut a p (mm)
Depth of Cut a p (mm)
L53
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