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Solid CBN Inserts

Processed Material: Hardened Steel, high strength cast iron, Powder Metallurgy, Gray Cast Iron
Processing Methods: Finishing, semi-finishing and roughing.
Application: Brake disc, compressor flange, brake drum, gears, valve, bearing, roller, grinding roller, engine cylinder head, cylinder sleeve, cylinder block, etc.

Cubic Boron Nitride (CBN) is a superhard material whose hardness is second only to diamond. It not only has many excellent characteristics of diamond, but also has higher thermal stability and chemical inertness to iron group metals and their alloys.

SCGN series solid CBN inserts have a 7 °cutting edge rake angle, which reduces the friction between the flank face and the machining surface, and cooperates with the rake angle to adjust the sharpness and firmness of the cutting part of the tool, enhance the edge strength and improve the cutting of the inserts performance.


The RCGX series Solid CBN insert is a CBN insert developed and produced exclusively by our company. It adopts a 120 °cone positioning to tightly fix the insert and the cutter body to complete the cutting of difficult-to-machine material workpieces. The service life is 5-10 times longer than that of carbide tools and ceramic tools.

The shape of the WNGN series solid CBN insert is 80 °hexagon, which has higher hardness, wear resistance and heat resistance than cemented carbide and ceramic tools. Can use high cutting speed and high hardness (HS58-68) cold hard cast iron, the cutting effect is significantly higher than the use of other materials tools.

SCGN0904 and SCGN1204 CBN inserts show better machining results in the machining of automotive brake discs. They can be roughing and finishing the end faces, outer circles and inner holes of brake discs. Cutting depth ap = 0.2mm, linear speed Vc = 1000m / min, feed amount f = 0.1mm / r.

TNGN series cubic boron nitride inserts have a stable regular triangle shape with superior cutting performance and are suitable for high-speed dry cutting. They are widely used in gray cast iron, ductile cast iron, wear-resistant alloy cast iron and various cast steels and hardened steel Processing, can withstand large cutting depth, large cutting, can adapt to intermittent cutting, cutting depth to control the inserts radius is preferably within two thirds.

The SN series solid CBN inserts (referred to as CBN blades) are square in shape, and there are many models and specifications. Under the high temperature and high pressure of the six-sided top hydraulic press, it is sintered and synthesized, which has strong wear resistance, heat resistance and chemical stability. It can efficiently turn cast iron brake discs, cast iron brake drums, boron cast iron cylinder liners, cast iron clutch pressure discs and other automotive parts to realizing turning instead of grinding. SN series CBN inserts are matched with 45 °, 75 °, 83 ° and other external turning tool holders. There are three types of R, L and N.

When processing hardened steel with PCBN tools, the quenching hardness of the workpiece is required to be higher than 45~55HRC. When processing hard cast iron, as long as the hardness reaches the medium hardness level (45HRC), good processing results will be achieved. For example, the exhaust valve seat on the cylinder head of an automobile engine is made of high chromium alloy cast iron material containing copper and molybdenum, and its hardness is generally about 44HRC

Features

SCGN0904 and SCGN1204 CBN inserts show better machining results in the machining of automotive brake discs. They can be roughing and finishing the end faces, outer circles and inner holes of brake discs. Cutting depth ap = 0.2mm, linear speed Vc = 1000m / min, feed amount f = 0.1mm / r.
1. Cubic boron nitride inserts has the advantages of high hardness, good abrasion resistance and high heat resistance. Selecting the appropriate cutting amount can achieve the purpose of improving production efficiency and ensuring processing quality.
2. For continuous cutting, the appropriate cutting amount is usually determined according to the wear resistance of the cubic boron nitride tool.
3. Cubic boron nitride cutters have superior high temperature performance and are best suited for high speed cutting. The effect of cutting speed on tool durability is less than when cutting with carbide tools.

 Characteristic  Advantages
 1.Widely application  Can meet finishing, semi-finishing and roughing.
 2.High fracture toughnes  Continuous cutting, general cutting, and interrupted cutting
 3.High bending strength  Large cutting depth(<1/3 length of insert)
 4.High temperature resistanc  Can withstand high temperature of 1400 degree
 5.More cutting edges  Unlimited regrind, high blade utilization

Application

solid cbn inserts 1

Parameters

RCGX S 1

Solid PCBN Insert ISO Models
Model L i.C S Grade
RCGX0605 —— 6.35 5.0 BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
RCGX0907 —— 9.525 7.94
RCGX1207 —— 12.7 7.94
RCGX1510 —— 15.875 10.0
RCGX1910 —— 19.05 10.0
RCGX2010 —— 20.0 10.0
Remark L:Cutting Edge Length(mm)                               i.C:Inscribed Circle(mm)                               S:Thickness(mm)

RNGN S 2

Solid PCBN Insert ISO Models
Model L i.C S Grade
R◇GN0604 —— 6.35 4.76 BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
R◇GN0904 —— 9.525 4.76
R◇GN1204 —— 12.7 4.76
R◇GN1207 —— 12.7 7.94
R◇GN1608 —— 16.0 8.0
R◇GN2008 —— 20.0 8.0
R◇GN2010 —— 20.0 10.0
Remark L:Cutting Edge Length(mm)               i.C:Inscribed Circle(mm)              S:Thickness(mm)                   ◇:N or C

CNGN S 1

Model: CNGN1204□□
Cutting Edge Length(mm): 12.9
Inscribed Circle(mm): 12.7
Thickness(mm) : 4.76
Grade: BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
□□:Nose Radius

Model: CNGN1207□□
Cutting Edge Length(mm): 12.9
Inscribed Circle(mm): 12.7
Thickness(mm) : 7.94
Grade: BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
□□:Nose Radius

Model: CNGN1608□□
Cutting Edge Length(mm): 16.1
Inscribed Circle(mm): 15.875
Thickness(mm) : 8.0
Grade: BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
□□:Nose Radius

TNGN S 2

Model: TNGN1103□□
Cutting Edge Length(mm): 11.0
Inscribed Circle(mm): 6.35
Thickness(mm) : 3.18
Grade: BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
□□:Nose Radius

Model: TNGN1604□□
Cutting Edge Length(mm): 16.5
Inscribed Circle(mm): 9.525
Thickness(mm) : 4.76
Grade: BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
□□:Nose Radius

WNGN S

Model: WNGN0804□□
Cutting Edge Length(mm): 8.7
Inscribed Circle(mm): 12.7
Thickness(mm) : 4.76
Grade: BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
□□:Nose Radius

SCGN S

Model: SCGN0904□□
Cutting Edge Length(mm): 9.525
Inscribed Circle(mm): 9.52
Thickness(mm) : 4.76
Grade: BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
□□:Nose Radius

Model: SCGN1204□□
Cutting Edge Length(mm): 12.7
Inscribed Circle(mm): 12.7
Thickness(mm) : 4.76
Grade: BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
□□:Nose Radius

SNGN S 2

Model: SNGN0904□□
Cutting Edge Length(mm): 9.525
Inscribed Circle(mm): 9.525
Thickness(mm) : 4.76
Grade: BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
□□:Nose Radius

Model: SNGN1204□□
Cutting Edge Length(mm): 12.7
Inscribed Circle(mm): 12.7
Thickness(mm) : 4.76
Grade: BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
□□:Nose Radius

Model: SNGN1608□□
Cutting Edge Length(mm): 16.0
Inscribed Circle(mm): 16.0
Thickness(mm) : 8.0
Grade: BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
□□:Nose Radius

Model: SNGN2010□□
Cutting Edge Length(mm): 20.0
Inscribed Circle(mm): 20.0
Thickness(mm) : 10.0
Grade: BTS6000   BTS6000A   BTS2800   BTS7800  BTS2900
□□:Nose Radius

CBN Grades &  Application of PCBN Inserts

CBN grade Average

particle size

CBN

content

Bonding Workpiece material Cutting distance Application
μm % Metal Ceramic Long Short
BT(S)2800 28 95 GCI, CHS × Industrial pumps, valves, brake discs, brake drums, bearings, cylinder liners, rollers, grinding rollers, etc.
BT(S)2800A 20 95 ×
BT(S)2805 14 95 ×
BT(S)2900 7 70 ×
BT(S)6000 2.5 60 FHS × Ball screw, bearing, drive shaft, gear, etc
BT(S)6000-A 2.5 60 ×
BT(S)7800 2.5 80 GCI, ACI × Brake disc, brake drum, gearbox housing, engine cylinder head, cylinder liners, cylinder block, etc.
BT(S)9000 3.5 80 × GCI ×
BT(S)8000 10 85 × DI, ACI,

FHS

× Engine cylinder head, cylinder liner, cylinder block, crankshaft, lead screw, bearing, drive shaft, gear, etc.
BT(S)8000A 2.5 80 × ×
BT(S)8800 1.5 75 × ×
BT(S)8600 1 80 FHS × Ball screw, bearing, drive shaft, gear, etc.
 Remark: 1. The cutting distance of each workpiece more than 240m are thought to be long distance cutting, otherwise it is short distance cutting.
                2. Workpiece material: Cast hard steel(CHS), Forging hard steel(FHS), Grey cast iron(GCI), Alloy cast iron(ACI), Ductile iron(DI)
                3. “√”=Yes,  “×”=No.
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