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Because of the high hardness of hardened steel is very hard to be grinded. The hardened steel contains the iron element, because of diamond’s carbon makeup, diamond grinding wheels would often dissolve iron at high temperatures,so it can not use diamond grinding wheel to process hardended steel. CBN grinding wheels doesn’t contain large amounts of carbon,so CBN grinding wheel is a good choice for grinding hardened steel. Due to its high thermal stability and chemical resistance, the CBN grinding wheel is most suitable for grinding hard ferrous materials, hardened steel, bearing steel, nickel based alloys,machining ferrous materials.
CBN grinding wheels maintain high levels of accuracy while still removing high amounts of material under extreme heat, making resin CBN grinding wheel has the perfect performance when grinding ferrous metals.
Applications of resin CBN grinding wheels
Resin bond CBN grinding wheels have the characteristics of good self-sharpness, long life and good surface roughness, widely used in the fine grinding and fine grinding of work pieces such as die steel, HSS steel, alloy steel, nickel-molybdenum alloy steel, chilled cast iron, tool steel, bearing steel, steel chainsaw, carving chisel, hardened steel,etc.
Resin CBN grinding wheel can grind most all grades of steel, which have hardness of 45Rc or above. HSS,Harden steels,Tool steels,Cast irons and most stainless steels are ground effectively and profitable with CBN resin bond wheels. When grinding Iron: Resin CBN grinding wheel does not react to iron.
Moresuperhard can provide Vitrified/ Resin / Metal /Electroplated CBN griniding wheel for corase,semi-finish, finish,ultra finish grinding and polishing for hard to process material.
Advantages of Resin CBN grinding wheel
1. High-quality raw materials, high purity, sharp and wear-resistant
2. High grinding efficiency
3. Sharp and fast cutting, high hardness
4. Good self-sharpening, full of elasticity and good grinding and polishing performance
5. Low heat generation, not easy to block, not to damage the workpiece
6. High temperature hot pressed produced, high workpiece precision
7. Wet or dry grinding is supprted
8. Long life
What is resin CBN grinding wheel?
Resin CBN grinding wheel with phenolic resin, polyimide resin, polyurethane resin, and other high performance and new resin as the bonding agent, resin CBN grinding wheel has good self-sharpening and high grinding efficiency.
Resin CBN widely used in high vanadium high-speed steel cutting tools, stainless steel, tool steel and die steel, and heat resistant workpiece semi-finish and finish grinding.
Why choose CBN wheel?
CBN in Resin Bond
CBN stands for cubic boron nitride, a superhard material second only to diamond in hardness, cool cutting and the ability to work with ferrous materials, unlike diamond.
Diamond is composed of pure carbon and is produced under high heat and pressure. When Diamond is used to grind hardened steel it causes a chemical reaction and essentially begins to form graphite and lose it strength.
What makes CBN better for working with hardened steels?
CBN is not composed of carbon atoms, instead it is formed with boron and nitride under pressure and heat. Grinding hardened steels produces high temperatures, CBN has a great thermal conductivity, keeping it cool under extreme heat.
Moresuperhard CBN Wheels are better suited for machining hardened steels, high speed steels, stellite and nickel based alloys and tool steels.
Specification of Resin CBN grinding wheel:
|
Diameter (mm) |
Thickness (mm) |
Hole |
X |
|
150 |
25.4 |
31.75 |
12.7 |
|
175 |
25.4 |
31.75 |
12.7 |
|
200 |
25.4 |
31.75 |
12.7 |
|
250 |
25.4 |
25.4 |
12.7 |
|
300 |
50.8 |
127 |
12.7 |
|
350 |
50.8 |
127 |
12.7 |
|
400 |
50.8 |
127 |
16 |
|
508 |
50.8 |
304.8 |
16 |
|
610 |
50.8 |
304.8 |
20 |
|
750 |
50.8 |
304.8 |
20 |
|
900 |
50.8 |
304.8 |
20 |
|
Coarse grinding: 46#, 60#, 80#, 100#, 120# Medium grinding: 120#, 150#, 180#, 200#, 240# Finish grinding: 280#, 320#, 400#, 500#, 600# Polishing: 800#, 1000#, 1200#, 1500#, 2000#, 3000 |
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Other specification can customize according to your requirements |
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Case of resin CBN grinding wheel for hardened steel grinding：
|
Workpiece |
Hardened steel |
|
Grinding problems during using corundum grinding wheel |
Low grinding efficiency and short working life |
|
Grinding wheel |
Resin CBN grinding wheel |
|
Moresuperhard recommend Grit |
Coarse grit |
|
Feedback |
Work well and the life is longer than corundum grinding wheel, get a sharp and long work-life tool |
|
How to dressing |
Moresuperhard Resin CBN grinding wheel is easy to dressing(only need one simple corundum stick or wheel is enough)
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Case of Resin CBN grinding wheel for hardened steel kinfe
|
Grinding wheel |
Resin CBN grinding wheel |
|
Workpiece |
industry knife with hardened steel |
|
Machine |
Goeckel G50 |
|
wheel dimension |
6A2 D150x10x6x50 D151 C100 wet grinding |
|
Ra require |
0.8 |
|
Infeed |
0.09mm/pass |