Solid SUMIBORON for Cast Iron Machining
B NS800 K
Cast Iron
From Finishing to Roughing of Cast lron and Exotic Alloys!
■ General Features
New solid structure CBN insert. As all the edges can be used, total
machining cost will be lower, compared to conventional CBN inserts.
Biggest demand for this insert will be in Cast Iron machining. As
conventional brazed CBN inserts are not suitable for high speed cutting
and roughing, BNS800 can be used even for high speed finishing
processes with many times the tool life of ceramic inserts. Additionally,
RM type cutter is developed exclusively for Solid SUMIBORON and is
suitable for high-speed rough milling.
■ Characteristics ● Larger Cutting Depths
100% solid CBN structure where the whole edge can be use.
● High Precision Machining
Excellent balance of wear resistance and toughness. Refer to pages L98 to L99
● Total Cost Effectiveness for BNS800 special holders
All corners of the insert can be utilized. and page L113 for RM Type
milling cutter.
■ Cutting Performance Continuous Cutting Interrupted Cutting
Flank Wear Width (mm) 0.06 Comp. CBN F BNS800 Int. cut OK.
F Chipping
D 0.14mm
0.04 F D BNS800
F D Comp. Fracture
FD Solid Int. cut. NG.
0.02 D CBN
0 10 20 30 0 3 6
Cutting Distance (km) Cutting Distance (km)
Work Material : Bar (FC300) Insert: SNGN090308 Work Material : Bar-6V grooves (FC300) Insert: SNGN090308
Cutting Conditions : vc=800m/min, f =0.2mm/rev, ap=0.5mm, Dry Cutting Conditions : vc=600m/min, f =0.3mm/rev, ap=0.5mm, Dry
● Wear resistance is better than competitor’s. ● Double the competitor’s fracture resistance.
■ Application Example ● Cylinder Bore ● Machine Bed ● Carbide Roll ● Sprayed Face Bore
Medium Finishing Carbide (Co 15%)
FC250 Colmonoy
FC250
Finishing Boring
L Milling RM3125R
SUMIBORON Turning