2024

How to choose between using CBN grinding wheel or diamond grinding wheel?

If grinding wheels are distinguished by abrasives, they can be divided into two categories: ※ traditional abrasives and ※ super abrasives
CBN and diamond belong to the category of super abrasives, and are called super abrasives because their hardness is much higher than other traditional abrasives. So, both are super abrasives, how do you distinguish between the two, and how do you choose the grinding wheel abrasives that are suitable for your own production? Firstly, we need to understand the characteristics of both.
What is cubic boron nitride (CBN)?
Cubic Boron Nitride (CBN): It was first synthesized by General Electric (GE) in the 1950s using artificial methods under high temperature and pressure conditions. Its hardness is second only to diamond and far higher than other materials, so it is collectively referred to as super abrasive along with diamond.
What is diamond abrasive?
Abrasives with high hardness, natural diamonds have high stability, but they are also expensive. Artificial diamonds are often used to make grinding wheels.
How to decide whether to choose CBN or diamond abrasive? Selection criterion (1): In terms of the basic logic of grinding, the hardness of the abrasive should be four times higher than that of the workpiece. If the grinding material is tungsten steel (superhard alloy), it can be found from the hardness table below that only diamond DIA has a hardness four times higher than tungsten steel (superhard). Therefore, Sheng Yao suggests using diamond abrasives.
Selection criteria (2): "Material" of the workpiece. If the workpiece is made of "iron containing material", use CBN
If the workpiece is made of non-ferrous materials: use diamond
Because if diamond is used to grind iron-based materials, it will react chemically with carbon in the iron, which will accelerate the wear rate of diamond, make the abrasive easy to passivate, reduce cutting force, and require dressing, resulting in poor machining efficiency. Therefore, diamond grinding wheels are not suitable for grinding materials containing iron.
Selection criteria (3): Grinding wheel "speed"
Due to the fact that diamond is a thermal decay type abrasive (high temperature can cause rapid wear), when the grinding wheel speed is high and the grinding temperature is high, it will cause the grinding wheel to wear too quickly. CBN is a micro crushing structure, and when the grinding wheel speed is fast, it can exert the self sharpening characteristics of the abrasive and maintain sharpness.
The above selection criteria are shared with everyone to select suitable grinding wheel abrasives.

Do you know the raw materials for high-quality cutting blades?

Development status of diamond micro powder industry: The industry is developing towards intelligent production

Do you know the raw materials for high-quality cutting blades?

Development status of diamond micro powder industry: The industry is developing towards intelligent production

How to choose diamond coated cutting tools

Like any other cutting tool, the lifespan of stone carving knives varies, mainly depending on the material being cut, the selected feed rate and cutting speed, as well as the geometric shape of the workpiece. Generally speaking, the lifespan of diamond coated tools for processing graphite is 10-20 times that of uncoated hard alloy tools, and in some cases may even be longer. In this way, almost any machining task can be completed with a single tool without the need for tool replacement due to tool wear, avoiding machining interruptions and recalibration, making it possible to achieve unmanned machining. In the processing of composite materials, it is also entirely possible to achieve a longer tool life

Do you know the raw materials for high-quality cutting blades?

Glass cutting blades are particularly suitable for accurate cutting and slotting of optical and electronic components due to the strong holding ability and high wear resistance of diamond abrasive particles by binders.

How to choose between using CBN grinding wheel or diamond grinding wheel?

CBN and diamond belong to the category of super abrasives, and are called super abrasives because their hardness is much higher than other traditional abrasives. So, both are super abrasives, how do you distinguish between the two, and how do you choose the grinding wheel abrasives that are suitable for your own production? Firstly, we need to understand the characteristics of both.

Development status of diamond micro powder industry: The industry is developing towards intelligent production

Diamond micro powder refers to diamond particles with a particle size smaller than 54 microns and a chemical composition of carbon, which is the hardest substance in nature. Diamond micro powder is a micron or submicron level ultrafine diamond powder formed by processing diamond single crystals through crushing, ball milling, and other processes. Diamond has high strength and good wear resistance, with a Mohs hardness of 10 and a microhardness of 10000kg/mm2. Its microhardness is 1000 times higher than that of quartz and 150 times higher than that of corundum. Therefore, diamond micro powder, as a superhard abrasive, has unparalleled grinding ability compared to other products and is increasingly receiving high attention from developed industrial countries.

Semiconductor Industry's Expectations for High Quality Diamond

Semiconductor materials are a type of functional material with conductivity between conductive and insulating materials at room temperature. Its conductivity will significantly change with temperature, light exposure, and doping, especially doping can change the conductivity and type of semiconductor, which is the basic basis for its wide application in manufacturing various electronic components and integrated circuits.

The company is positioned to focus on the production, research and development, and innovation of diamond micropowder and diamond crushing materials; for a long time, it has always adhered to this goal and has become the mission of the company.

Consulting

Address: 108 Zhuhai Road, Zhecheng County, Shangqiu City, Henan Province (E-commerce Industrial Park)
Telephone:13783707096(Mr. Lee)
E-mail:1484256632@qq.com

Powerby:www.300.cn Zhengzhou | SEO