CBN B20 High Strength Cubic Boron Nitride Powder For Grinding Tool

CBN B20 High Strength Cubic Boron Nitride Superabrasive For Grinding Tools

Description:

CBN, cubic boron nitride, is a super-hard abrasive with hardness second only to diamond and better thermal stability than diamond. Cubic boron nitride (CBN) does not react with iron group elements. Its hardness and chemical properties make CBN particularly suitable for grinding ferroalloys and other aerospace materials.
The grinding performance of CBN crystal is also determined by its three crushing methods.
- Block brittle form. After the cutting edge wears out, the single crystal appears massively broken, and a new cutting edge appears;
- Slightly brittle form. After the edge angle is worn, a new cutting edge appears due to micro-block brittleness.
- Slightly brittle form. The structure of CBN crystallites can continuously provide sharp cutting edges. High toughness CBN is used in electroplating, ceramics and metal bonding agents. CBN with good brittleness is suitable for resin or ceramic bond.
Cubic boron nitride processing materials:
Alloy steel (HRC>50)
Cast iron, tool steel (HRC>50)
Super alloy (HRC>40)
Stainless steel (HRC>50)

Improve grinding efficiency to a new level
CBN/cubic boron nitride powder is with high hardness and high temperature resistance, four times that of traditional abrasive in wear resistance, and have extraordinary thermal conductivity.
There are hundreds of raw materials needed to use CBN to grind in present manufacturing market, from aerospace superalloys and thermal spraying to the hardened steel in automotive bearing and gear industry to improve efficiency and get the shortest processing time.

cBN Series Mesh Size Available:

cBN Series Micron Size Available:

Abrasive Materials Mesh Size Comparison List

cBN Mesh & Micron Series

- cBN B10
Black color, irregular sharp, low toughness but good self sharpen ability, easily fractured monocrystalline. Widely used for resin bond systems and low temperature grinding.

- cBN B20
Black color, monocrystalline, semi-blocky, high toughness and thermal stability. Usually used for vitrified bond and metal bond, maintaining grinding performance and tool life.

- cBN B30
Black, semi-tough, irregular, angular sharps provide increased grinding efficiency in resin or vitrified bond systems.

- cBN A40
Gold color, blocky, very tough and extremely high thermal stability. Used in metal bond systems and electroplated tools.

- cBN A50
Dark brown, irregular monocrystalline with sharp edge, tough and high thermal stability. Used in vitrified and metal bond systems, also used in heavy-duty resin bonds.

- cBN A60
Dark brown, blocky, very tough and high thermal stability. Widely used in metal bonds and electroplated tools.

- cBN A70
Gold in color, blocky, tough and high thermal stability. Widely used in metal bond and electroplated tools, better choice for hardened tool steel, cobalt-based alloys and super cobalt alloy.

- cBN A80
cBN80 series is our highest leval of cBN powder with high strength, high toughness, high stability and recommended for vitrified bond cBN grinding wheels processing auto camshaft and crankshaft, which is especially suitable for production of PCBN and cBN sintered body.

- CBN A80M Micron Size

A80M is now the higher level of CBN powder in China, with high toughness, high stability, which is the best choice for vitrified bond CBN grinding wheel processing aturo camshaft and crankshaft. Therefore, A80M has strong grinding force and much better stability than other CBN micronpowder. The cleanliness of the surface through special processing is especially suitable for the production of PCBN and CBN sintered body.