Solid SUMIBORON for Cast Iron Machining BNS800
Cast Iron
From nishing to roughing of cast iron and exotic alloys
■ General Features Enables great reductions in machining costs with a dedicated grade combining wear resistance and fracture resistance, and solid structure allowing the whole insert to be used as a cutting edge. Unlike conventional brazed type inserts, which are not suitable for high speed cutting and roughing, this grade can be used even for high-speed finishing processes. Additionally, the RM type cutter is designed exclusively for Solid CBN - SUMIBORON and is suitable for high-speed rough milling.
L
■ Features
● Larger cutting depths 100% solid CBN structure where the whole cutting edge length can be used. ● Supports high-precision finishing Grade with excellent balance of wear resistance and fracture resistance. ● Achieves overall cost reductions All corners of the insert can be utilized for greater economy.
L100 to L102
BNS800 Dedicated Tool Holder
L121
BNS800 Dedicated Cutter
■ Cutting
Continuous Cutting
Interrupted Cutting
Performance
Competitor's CBN
F
Int. cut OK (Wear Amount .0055”)
.0024
F
BNS800
D
F D
D
.0016
BNS800
F D
Competitor's Solid CBN
Not Possible to Continue Due to Breakage
F D
.0008
0
5
10
0
12
24
36
Time in Cut (minutes)"
Time in Cut (minutes)
Part Material Cutting Conditions
: : 6V Grooved Round Bar - Grey Cast Iron, Tool Cat. No.: SNG322 v c = 2,000 SFM, f = .0118 IPR, a p = .0197” Dry
Part Material Cutting Conditions
: : Round Bar - Grey Cast Iron, Tool Cat. No.: SNG322 v c = 2,650 SFM, f = .0079 IPR, a p = .0197” Dry
● Double our competitors' fracture resistance
● Wear resistance is better than competitors' products
■ Application Examples
● Grey Cast Iron Engine Cylinder Bore Med. Finish
● Grey Cast Iron Machine Bed / Milling
● Carbide (Co15%) Roll Cutting
● Colmonoy Sprayed Bore Face
Finishing
Internal Diameter Machining
Milling
RM3125R
External Turning
<Tool Life Criterion: Breakage>
<Tool Life Criterion: Surface Roughness>
<Tool Life Criterion: Surface Roughness>
<Tool Life Criterion: Breakage>
BNS800 Competitor's CBN
10 holes
6 holes
5 Passes Able to Continue Further
BNS800
BNS800
BNS800
7500 bores
400min
<Machining Cost / Corner> BNS800 Competitor's CBN
Competitor's Solid CBN
Competitor's CBN
60min ( v c = 500m/min)
2500 bores
1 Pass Breakage
Carbide
Cutting Duration (min) 200
400
Ratio 0.5
1
Cutting Conditions Med. Finish Finishing Cutting Conditions
Roughing
Cutting Conditions
Finishing
Cutting Conditions Roughing Finishing
Grade
BNS800
Grade
BNS800
Grade
BNS800
Grade
BNS800
Cat. No.
SNG322
Cat. No.
SNEN322W Cat. No.
RNG32
Cat. No. SNG323 SNG322
3,300 SFM
5,000 SFM
130 SFM
260 SFM
v
v
v
v
c
c
c
c
.0118 IPR .0099 IPR
.0079 IPT
.0059 IPR
.0015 IPR .0012 IPR
f
f
f
f
z
.079"
.099" (2 Passes)
.079"
up to .118" .0197"
a
a
a
a
p
p
p
p
Coolant
Wet
Coolant
Dry
Coolant
Wet
Coolant
Wet
L20
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