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Ceramic CBN grinding wheel use

The ceramic CBN grinding wheel is made of cubic boron nitride abrasive as raw material, and is sintered into metal abrasives of various shapes by metal powder, resin powder and ceramic as bonding agents for industrial grinding, polishing and grinding. The ceramic grinding wheel maintains the original high hardness performance of the ceramic grinding wheel, has low sintering temperature, high strength and toughness, good abrasive performance, heat resistance, oil resistance, water resistance, acid and alkali resistance, self-sharpness, and can be trimmed and trimmed. Long spacing, uniform porosity, easy to cool, chip removal, etc. During the grinding process, it does not block or burn the workpiece, and it does not change with the iron element. It is inert, reduces the fatigue of the workpiece during grinding by China cut off disc , increases the service life of the workpiece, and improves the quality and roughness of the workpiece. , efficiency and the degree of automation of the workpiece, to achieve the purpose of reducing the overall cost.

Ceramic CBN grinding wheel advantages:

CBN has a higher hardness than ordinary abrasives. High hardness means stronger cutting ability and sharper; CBN has higher wear resistance, which means it is more difficult to wear than ordinary abrasives; the ability to maintain the shape of abrasive grains is one of the main characteristics of CBN as a high-performance abrasive; CBN High compressive strength means that it maintains particle integrity and is not easily broken when used under harsh conditions; CBN has good thermal conductivity and can be cold cut during grinding.

1. High hardness and high toughness Cubic boron nitride (CBN) is a harder material that is second only to diamonds synthesized by humans. It is much higher than ordinary corundum and silicon carbide abrasives, so it has better cutting ability and sharpness.

2, high temperature resistance, good thermal stability. Cubic boron nitride can withstand high temperatures of 1250-1350 degrees Celsius, which is higher than the heat resistance of diamonds of 800 degrees Celsius; when grinding and cutting iron materials, there will be no sticking phenomenon, grinding hardened steel, high vanadium high speed Metal materials such as steel and aluminum high-speed steel that are sensitive to grinding temperatures are the most ideal grinding wheels.

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3. Strong chemical inertness. Cubic boron nitride is not easy to react with iron group elements, so it has high temperature and high hardness for various high speed steel, tool steel, die steel, high alloy hardened steel, chrome steel, nickel alloy, powder metallurgy steel and high temperature alloy. Grinding of materials with low thermal conductivity is very suitable.

4, good thermal conductivity. The thermal conductivity of CBN can reach tens to 100 times that of corundum grinding wheel, so the grinding heat can be quickly exported and the workpiece can be thermally deformed. It is very suitable for grinding materials with low thermal conductivity. Various spraying (welding) materials: nickel base, iron base, etc.; wear-resistant cast iron materials: vanadium-titanium cast iron, high-phosphorus cast iron, chilled cast iron, etc.; titanium alloys: such as TC4.

5. Good grinding performance and good surface quality. Since the cubic boron nitride abrasive tool can maintain the sharpness of the micro-blade of the abrasive grain for a long time, the processing precision and the surface roughness value of the workpiece to be processed can achieve a desired effect, so that the durability of the workpiece can be improved by 10%-30%. . Therefore, even batch-processed workpieces will always achieve higher shape, accuracy and consistency. CBN grinding wheel can achieve high dimensional accuracy and low surface roughness. The machined surface is less prone to cracks and burns, and the residual stress is small. The quality of the machined surface is improved, generally no cracks, not easy to burn, and residual compressive stress can be obtained, which significantly improves the fatigue strength of the workpiece. Generally, the durability of the workpiece to be ground can be increased by 30-50%.,

6, strong wear resistance and long life. The grinding ratio of CBN grinding wheel can reach 3500 to 5500, which is 100 times higher than ordinary corundum grinding wheel and 3 to 5 times higher than diamond grinding wheel.

7, environmental protection, no pollution, energy saving. There is not much powder dust.

8. High work efficiency and comprehensive economic benefits. Sharp grinding, small grinding force, long dressing period of CBN grinding wheel, less dressing and long replacement time; long service life and high grinding ratio, better economical efficiency, good shape retention during use, no need to be frequent Replacing the grinding wheel and dressing the grinding wheel saves man-hours and improves working conditions, which is conducive to processing operations.

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