MILLING
NPA 28/2017
New CBN Tipped Inserts for Hard Part Turning
Highlights
ISCAR is expanding the geometry range of ISOTURN CBN tipped inserts.
Following market demand for hard part turning and the successful performance results of the
currently available CBN inserts, ISCAR is expanding the range of geometries, edge preparations
and CBN grade options.
ISCAR PCBN Grades
Recommended cutting conditions for uncoated CBN Grades
Workpiece
material |
Grade |
Description |
Cutting mode |
Feed
mm/rev |
Depth of cut
mm |
Continuous cut
|
Light interrupted
|
Heavy interrupted
|
Cutting speed M/Min |
H
Hardness
steel
50-65
HRC |
IB05H |
High speed continuous
hard turning |
100-300 |
- |
- |
0.03-0.18 |
0.05-0.30 |
IB10H |
Continuous to light interrupted
grade for superior surface finish |
30-200 |
30-150 |
- |
0.03-0.18 |
0.05-0.30 |
IB20H |
Continuous to ordinarily
interrupted turning |
30-200 |
30-200 |
- |
0.03-0.25 |
0.05-0.50 |
IB25H |
Tough grade for heavily
interrupted turning |
- |
- |
30-200 |
0.03-0.25 |
0.05-0.50 |
IB90 |
Toughest grade for heavily
interrupted turning |
- |
- |
30-120 |
0.03-0.30 |
0.05-0.50 |
Recommended cutting conditions for hardened steel with coated CBN Grades 50-65HRC
Workpiece
material |
Grade |
Description |
Cutting mode |
Feed
mm/rev |
Depth of cut
mm |
Continuous cut
|
Light interrupted
|
Heavy interrupted
|
Cutting speed M/Min |
H
Hardness
steel
50-65
HRC |
IB25HC |
Coated grade for
interrupted turning |
- |
- |
100-220 |
0.05-0.25 |
0.10-0.50 |
IB25HA |
Coated grade for light
interrupted turning |
- |
100-220 |
- |
0.05-0.25 |
0.05-0.50 |
IB20HC |
Coated grade for high
speed interrupted turning |
- |
150-250 |
150-200 |
0.05-0.25 |
0.05-0.50 |
IB10HC |
Coated grade for high
speed continuous turning |
150-300 |
100-300 |
- |
0.05-0.20 |
0.05-0.30 |
Insert Designation Code Key
Chipbreaker:
HF- Finishing
HM- Medium cutting
01-30: application range according to
the ISO 513 classification and
application of cutting materials
Insert size
Number of
cutting edges
ISO Scale:
H- Hardened steel
S- Exotic materials
Wiper
Edge preparation type:
R- Roughing/interrupted: 0.13 mmx35°
M- Medium/light interrupted: 0.13 mmx25°
F- Finishing/continuous: 0.13 mmx15°
S- Sharp edge
H- Honed (0.03-0.04 mm)
T- 0.14 mmx20°
Coating type & solid:
C- TiN/Ti (C, N, O) coated tipped insert
A- Ti (C, N) coated tipped insert
B- Uncoated solid
D- TiN coated solid
Recommended CBN Edge Preparation For Typical Applications
| Honed 0.03-0.04 (mm) for superior surface/continuous | |
| Finishing / continuous: 0.13mmX15°+honing | |
| Medium / light interrupted: 0.13mmX25°+honing | |
| Medium / light interrupted: 0.14mmX20°+honing | |
| Roughing/ interrupted: 0.13mmX35°+honing | |
CNGA-2 (CBN)
80° Rhombic Inserts with 2 CBN Tips for Machining Hardened Steel,
Sintered Metals and High Temperature Alloys
DNGA-2 (CBN)
55° Rhombic Inserts with 2 CBN Tips for Machining Hardened Steel,
Sintered Metals and High Temperature Alloys
VNGA-2 (CBN)
35° Rhombic Inserts with 2 CBN Tips for Machining Hardened Steel,
Sintered Metals and High Temperature Alloys
CCGW/CCMW-2 (CBN)
80° Positive Rhombic Inserts with 2 CBN Tips for Machining Hardened Steel,
Sintered Metals and High Temperature Alloys
DCGW/DCMW-2 (CBN)
55° Positive Rhombic Inserts with 2 CBN Tips for Machining Hardened Steel,
Sintered Metals and High Temperature Alloys
VCGW-2 (CBN)
35° Positive Rhombic Inserts with 2 CBN Tips for Machining Hardened Steel
VBGW/VBMW-2 (CBN)
35° Positive Rhombic Inserts with 2 CBN Tips for Machining Hardened Steel