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Hardened SteelHaSrdteeenled Turning Insert Selection Guide
Insert Grades BN2000 / BN1000
Selection
BN2000: General purpose grade suitable for typical hardened steel machining applications.
Provides a high degree of fracture and wear resistance.
BN1000: For high speed machining. BN1000 provides the highest wear resistance of all uncoated SUMIBORON grades.
Features improved fracture resistance while still placing a priority on wear resistance.
l Wear Resistance (Continuous Cutting) l Chipping Resistance (Interrupted Cutting)
Competitor 1 Breakage BN2000 (Comparison based on conventional BN2000 as 100%.)
Flank Wear Width (mm) BN2000 Approx. 1,4x tool life!
Conventional
Grade 1
Competitor 1
Cutting Distance (km) BN1000 Approx. 1,4x tool life!
Work Material: 15CrMo5, Round Bar (58-62HRC)
Cutting Conditions: vc=100m/min, f =0,1mm/rev, ap=0,2mm, Dry
Flank Wear Width (mm) Competitor 2 Conventional
Grade 2
BN1000
Competitor 2
Cutting Distance (km) Tool Life Ratio (%)
Work Material: 100Cr6, Round Bar (58-62HRC) Work Material: 15CrMo5, 8V Grooved Material (58-62HRC)
Cutting Conditions: vc=150m/min, f =0,1mm/rev, ap=0,2mm, Dry Insert: CNGA120408 NU-2
Cutting Conditions: vc=150m/min, f =0,1mm/rev, ap=0,2mm, Dry
Application Examples
BN2000
15CrMo5 Clutch Component 15CrMo5 CVT Pulley Slide
Employs BN2000 for superior fracture resistance compared to Whereas conventional products required replacement after 100
conventional grade and longer tool life.
workpieces (preset tool change), BN2000 has no breakage after 250
3-
workpieces. 250 - 250
2-
Tool Life Ratio (%) Output (pcs) / Cutting edge 200 -
1-Cutting Distance 11,3km
Cutting Distance 150 -
0 3,7km
100 - 100
BN2000 Conventional 50 -
CBN 2 Notches
0
Insert: TPGW 110308 NU (BN2000)
Cutting Conditions: vc=135m/min, f =0,08mm/rev, doc =0,15mm, Dry BN2000 Conventional
CBN
Insert: DNGA 150408 NU-2 (BN2000)
Cutting Conditions: vc=150m/min, f =0,1mm/rev, doc=0,2mm, Dry
X155CrVMo12-1 Plunger BN1000
Long tool life and more stable surface roughness than coated 100Cr6 Internal Boring
CBN at extremely low cutting speeds.
BN1000 ensures less friction than conventional grades and
Output (pcs) / Cutting edge 200 - 200 120 achieves long tool life. Output (pcs) / Cutting edge
-
1.200 - 1200
100 -
800 - 800
-
400 -
0
0
BN2000 Conventional
CBN BN1000 Conventional
CBN
Insert: DNGA 150408 NU-2 (BN2000)
Cutting Conditions: vc= ~ 100m/min, f =0,03 ~ 0,25mm/rev, doc =0,04mm, Dry Insert: TPGW 110304 NU (BN1000)
Cutting Conditions: vc=120m/min, f =0,06mm/rev, doc =0,2mm, Wet
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