CBN / Coated CBN CBN Grade Guidance
Exotic Alloy
TITANIUM ALLOY CUTTING
● Advantages of titanium alloy machining with SUMIBORON CBN ( SUMIBORON) enables high speed machining of titanium alloys that were previously difficult to machine with conventional tools, drastically improving machining efficiency.
Recommended Grade
Grade
Binder CBN Content (%) Grain Size (μm) Hardness HV (GPa) Transverse Rupture Strength (GPa) Main Coating Components Coating Thickness (μm)
Features
Ideal for high-efficiency finishing of titanium alloy.
Q
Q Q
NCB100
100
0.2 to 0.5
51 to 54
1.8 to 1.9
L
Transverse rupture strength measured with test piece equivalent to insert CBN layer
Performance
Recommended Cutting Conditions
Carbide
.0157
▲
Part Material
Recommended Cutting Conditions Cutting Speed v c (SFM)
Min. - Max.
Grade
Feed Rate f (IPR)
Depth of Cut a p (inch)
.0118
Composition Hardness (HRC)
165 330 500 660 825 1000
Conventional CBN
NCB100
◆
■
Conventional PCD
.0079
NCB100
.0039 - .0197
● ●
Ti-6Al-4V
30 - 35
.0039 - .0197
■
●
◆
●
●
■ ■■
▲
.0039
● ●
NCB100
.0039 - .0197
32 - 38
Ti-5Al-5V-5Mo-3Cr
.0039 - .0197
▲ ▲ ◆ ◆◆ ■ ■ ● ●●● ◆◆ ■■
●●
.0039 - .0197
NCB100
32 - 38
Ti-10V-2Fe-3Al
.0039 - .0197
0
60
120
180
240
Time In Cut (minutes)
Work Material: Titanium Alloy (Ti-6Al-4V) Tool Cat. No.: CNGA432 Cutting Conditions: V C = 500 SFM, f = 0.0059 IPR, a p = .0197" Wet (High Pressure Coolant)
HEAT-RESISTANT ALLOY MACHINING
● Advantages of heat-resistant alloy machining with CBN - SUMIBORON CBN - SUMIBORON provides long tool life in the finishing of heat-resistant alloys.
Recommended Grade
Recommended Cutting Conditions
Part Material
Recommended Cutting Conditions
1,320 400 1,320
165 330 500 660 Cutting Speed v c (SFM)
Feed Rate f (IPR)
Depth of Cut a p (Inch)
Category Material
BN350
660 200 660
Ni-Based Heat-Resistant Alloy Co-Based Heat-Resistant Alloy
Inconel 718
.0019 - .0079
.0039 - .0394
BN7000 BN7125 BN7000
330 100 330
.0019 - .0079
.0039 - .0394
Stellite
165 100 50 30 165 100
Carbide (Roughing, Med. Finishing) Cemented Carbide (Roughing, Med. Finishing) Carbide (Roughing, Med. Finishing)
.0039 0.1 .0039
.0079 .0118 .0157 0.2 0.3 0.4 .0079 .0118 .0157
Feed Rate f (IPR) f (mm/rev) Feed Rate f (IPR)
● CBN - SUMIBORON is ideal for finishing heat-resistant alloys.
L11
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