PCBN Cutting Tool Blanks

PCBN blanks for cutting tools is a kind of compound ultra hard material sintered by polycrystalline CBN and carbide alloy under the condition of ultra-high pressure and high temperature.

characteristic :

1.hardness,wear-resistance and thermal stability of CBN

2.impact resistance toughness of carbide alloy

3.fast cutting and high precision

Application:

Moresuperhard PCBN is ideal ideal material for cutting processing of ferrous metal and nonferrous metal with high hardness, such as harden steel, pearlitic gray cast iron, high temperature alloy, high-speed steel, hard facing alloys, Ni-Cr alloy, powder metallurgy metals. PCBN is typically used to machine brake discs, engine blocks, engine cylinder liners, brake drums, flywheels, valve seats and guides, gears, mold and die parts, etc.

Guidance of application

Material		Material hardness	Recommended Model	Cutting speed V	Feeding speed f	Cutting depth
Material		Material hardness	Recommended Model	(m/min)	(mm/rev)	(mm)
Cast iron	Grey iron		MBN91/90	600-1000	0.1-0.5	0.2-1.5
	Alloy iron	HRC59	MBN60/80	300-800	0.1-0.5	0.2-1.5
	Ductile Iron	>HB200	MBN60	100-500	0.1-0.4	0.1-0.5
Hardened steel	Tool steel	HRC60	MBN70	100-200	0.02-0.2	0.1-0.5
	High-speed steel	HRC63	MBN350	80-160	0.02-0.2	0.1-0.5
	Bearing steel	HRC60	MBN350	120-240	0.02-0.2	0.1-0.5
Powder metallurgy material	Heat-resistant sintered alloy steel	HRC45	MBN90	80-200	0.03-0.2	0.1-1.0
Powder metallurgy material	Iron-based sintered alloy	HRC35	MBN90	100-200	0.03-0.2	0.1-1.0
Super-alloy	Co-based	HRC35	MBN91	50-100	0.05-0.2	0.1-1.0
	Ni-based	HRC36	MBN91	120-150	0.05-0.2	0.1-1.0
	Iron-based	HRC37	MBN91	130-150	0.05-0.2	0.0-1.0
Carbide	Carbide		MBN60	50-120	0.02-0.2	0.1-1.5

Item No.

Temperature Allowed

（℃）

Wear-resistance

（SiC wheel）

Bending Strength （Mpa）

Vickers Hardness

（Hv）

Electrical Conductivity

MBN 90

1100

4200

1100

3100

Excellent

MBN 91

1100

4800

1100

3600

Good

MBN 80

1100

3900

1000

2700

Good

MBN 70

1200

3500

900

2800

Excellent

MBN 60

1200

3200

900

2800

Excellent

MBN350

1200

3000

800

2600

Excellent

Note: customer specification available.

Specifications

Item No.	Type	Grain Size （μm）	CBN Content （%）CBN	Bonding Agent	Application
MBN 90	With carbide	1.5	90	Al-Co	Rough and precise processing of grey iron; Good thermal stability
MBN 91	With carbide	mixed	93	TiN	Rough and precise processing of grey iron
MBN 80	With carbide	4	80-85	TiN	Rough and precise processing of super alloy
MBN 70	With carbide	4	70	TiN	Precise processing of hardened steel, Intermittent cutting
MBN 60	With carbide	4	60-65	TIC	Precise and slight intermittent processing of hardened steel
MBN 350	With carbide	1.5	45-50	TiN	Speed continuous precise processing of hardened steel

Product Measurement

Diameter (mm)	Measurement Marking	Overall thickness (mm)	PCBN layerthickness (mm)
Ф10	CBN content* Dia.* Overall thickness	1.6-3.8	0.7-1.2
Ф12	CBN content* Dia.* Overall thickness	1.6-3.8	0.7-1.2
Ф14	CBN content* Dia.* Overall thickness	1.6-3.8	0.7-1.2
Ф16	CBN content* Dia.* Overall thickness	1.6-3.8	0.7-1.2
Ф20	CBN content* Dia.* Overall thickness	1.6-3.8	0.7-1.2
Ф25	CBN content* Dia.* Overall thickness	2.5 -3.8	0.7-1.2
Ф30	CBN content* Dia.* Overall thickness	1.6-3.8	0.7-1.2
Ф32	CBN content* Dia.* Overall thickness	1.6-3.8	0.7-1.2
Ф35	CBN content* Dia.* Overall thickness	1.6-3.8	0.7-1.2
Ф45	CBN content* Dia.* Overall thickness	1.6-3.8	0.7-1.2
Note: customer sizes available.

1.PCBN application example :

1.1 TBN91——for cutting soft and hard cast iron

TBN 91 has a high content of CBN and mesh size of CBN is larger, it’s a mixture of different mesh size with good exposure, fracture toughness, wear resistance and chemical stability. It’s suitable for cutting Ni-Cr chilled cast iron, hard cast iron, high-chrome alloy steel and grey iron.

PCBN Cutting Tool Blanks6

TBN 91 has a high content of CBN and mesh size of CBN is larger, it’s a mixture of different mesh size with good exposure, fracture toughness, wear resistance and chemical stability. It’s suitable for cutting Ni-Cr chilled cast iron, hard cast iron, high-chrome alloy steel and grey iron.

TBN91 application guidance
Material	Speed (m/min)	Feeding speed (mm/rev)	Cutting depth (mm)
Hard cast iron（＞45HRC）	240-450	0.1～0.6	0.1～2.5
Pearlite gray cast iron	500～1300	0.15～0.6	0.1～2.5

1.2 TBN90 for cutting powder metallurgy material

TBN90 is designed with a high content of quality CBN to achieve good wear and impact resistance, therefore is suitable for cutting powder metallurgy material which is chemical active and wear resistant.

Features of TBN90 :

1.good wear resistance

2.good impact resistance

3.good chemical stability

4.high precision of material measurements after cutting

5.consistent cutting

TBN90 application guidance
Material	Speed (m/min)	Feeding (speed mm/rev)	Cutting speed (mm)
powder metallurgy	50～180	0.10～0.25	0.10～1.00

1.3 TBN60 for cutting power metallurgy material

Applied with high quality CBN powder and unique prescription make up, TBN60 can offer good wear, tenacity and high impact resistance. It is suitable for cutting hard and fragile powder metallurgy material.

TBN60 application guidance
Material	Speed（m/min）	Feeding speed (mm/rev)	Cutting speed (mm)
Ductile cast iron	300-500	0.2	0.10～1.00

1.4 TBN350——for cutting hardened steel

PCBN Cutting Tool Blanks5

TBN350 is designed with CBN powder and TiN metal bond, it has very good impact resistance and chemical stability and is suitable for precision cutting of hardened steel of 45-63HRC to achieve good surface finish.

Advantages of TBN350 cutting hardened steel (> 45HRC):

1.good wear resistance

2.good fracture strength

3.good chemical stability

4.high precision of material measurement after cutting

TBN350 application guidance
Material	Speed (m/min)	Feeding speed (mm/rev)	Cutting depth (mm)
Hardened steel alloy	120-240	0.1～0.2	0.1～0.4
Tool steel, mold steel	120-200	0.1～0.2	0.1～0.4

2. PCBN Shaped Bit specification

PCBN Cutting Tool Blanks4

Type	Angle（°）	Diameter（mm）	Total Thickness （mm）	CBN Thickness （mm）
All type	360°	32	4.0	0.8
		25.4	4.0/5.0	0.8
		20	3.8	0.8
		13.8	3.8/3.5	0.8

PCBN Cutting Tool Blanks3

Type	Size（LXW）	Diameter（mm）	Total Thickness（mm）	CBN Thickness （mm）
All type	24×22	32	4.0	0.8
	22×22	25.4	4.0/5.0	0.8
	18×18	20	3.8	0.8
	14×14	13.8	3.8/3.5	0.8

PCBN Cutting Tool Blanks2

Type	Angle（°）	Radius（mm）	Total Thickness（mm）	CBN Thickness （mm）
All type		16	4.0	0.8
	60/80	12.7	4.0/5.0	0.8
		10	3.8	0.8
		6.9	3.8/3.5	0.8

PCBN Cutting Tool Blanks

Type	Angle（°）	Size（mm）	Total Thickness（mm）	CBN Thickness （mm）
All type	60/80	5.8	4.0	0.8
		6.2	4.0/5.0	0.8
		9.3	3.8	0.8
		15.3	3.8/3.5	0.8

Application:

Moresuperhard PCBN is ideal for tools used for the machining of high hardness and hard processed ferrous materials (HRC45-65), such as harden steel, pearlitic gray cast iron, high temperature alloy, high-speed steel, hard facing alloys, Ni-Cr alloy, powder metallurgy metals. PCBN is typically used to machine brake discs, engine blocks, engine cylinder liners, brake drums, flywheels, valve seats and guides, gears, mold and die parts, etc.

PCBN

PCBN tools are suitable for the high-speed and super high-speed precision machining of hardened steel of HRC>45, wear-resistant cast iron, heat-resistant alloys of HRC>35, pearlite grey cast iron, nodular cast iron, Fe-based P/M sintered materials and hardened cast iron.

The tools achieve highest quality and economic efficiency. The result: Long service life, highest surface quality, optimal process reliability and repeat-ability.