The difference between diamond sanding belts and diamond grinding wheel
 

Both diamond abrasive belts and diamond grinding wheel are the cumulative effect of micro-cutting of the "micro-edge cutting tool" with high speed -- abrasive particles, so their grinding mechanism is roughly the same. However, due to the different characteristics of sand belt composition and use mode, the grinding of diamond polishing belts is different from diamond wheel grinding in terms of both grinding mechanism and comprehensive grinding performance. The main performance is as follows:

   

1. Diamond wheel grinding is rigid contact grinding, while diamond/CBN sanding belts grinding is elastic grinding, and this is true even in the case of inelastic steel contact wheels, because the substrate and binder that make up the belt are elastic, not to mention elastic rubber is used as the contact wheels in most cases. Because of this, belt grinding not only has the same sliding, ploughing and cutting effects as diamond grinding wheel, but also has the extrusion effect of abrasive particles on the workpiece surface. Therefore, from this point of view, flexible diamond belt grinding has multiple functions of grinding, grinding and polishing at the same time. This is the reason why the surface quality of abrasive belt grinding is higher than that of diamond wheel grinding.

 

2. The distribution of abrasive particles on the grinding surface of diamond grinding wheel is chaotic and irregular. In actual grinding, abrasive particles are cut with large negative front Angle, small back Angle or even negative back Angle, and the cutting conditions are very bad.  Diamond abrasive belts is different, the abrasive belt is specially manufactured, the geometric shape of the abrasive particles is often Yangtze River Delta body, and a series of advanced technology such as electrostatic sand planting is used to make, the size and distribution of the abrasive particles are uniform, good height, and is the form of the pointed edge is planted on the surface of the sand belt substrate, exposing more parts of the adhesive layer. Therefore, the abrasive particles of the abrasive belt are sharper than those of the diamond wheel, and the cutting conditions are better. The material deformation during grinding is small, the cutting force is high, the grinding force and the resulting grinding heat are small, and the grinding temperature is low.

3. The abrasive particles of diamond grinding wheel are filled with settling agent, and the chip tolerance space is very small. Chip capacitors between the abrasive belt grinding grain space generally at least 10 times greater than that of diamond grinding wheel, contour, and grits and abrasive belt grinding grain cutting area is large, the effective cutting ability stronger than diamond grinding wheel, and the wear debris can be directly taken away at any time, very few residues on the surface of the abrasive belt cause congestion, and thus increase the friction heat, not the low temperature in the grinding zone.

4. The perimeter of diamond sanding belt from the design point of view, can be much bigger than that of the diamond grinding wheel circumference, this makes the abrasive belt in grinding both good cooling conditions, and can be hung up part of the abrasive belt at runtime oscillation will stick in the sand belt grinding chip natural shake off, fill of further reduce the phenomenon, thereby reducing the friction heat, This is also another reason for the low grinding temperature of the belt.
 

5. More About diamond sanding belt and Diamond Grinding Wheel

5.1 Diamond Sanding Belt Introduction:

Diamond sanding abrasive belt is a kind of coated abrasive tool, which is superhard material (synthetic diamond) abrasive particles adhesive to the flexible base by the bond.

Applications of Diamond Sanding Belt

Diamond sanding abrasive belt can be widely used for grinding steel, stone, glass, ceramics, monocrystalline silicon, polysilicon, zirconia, alumina, metal-nonmetallic synthetic materials, cemented carbide, aluminum-magnesium alloy, aluminum beryllium alloy, titanium alloy and etc. hard brittle materials.

Application Scenarios of diamond abrasive belts

Classification of Diamond Sanding Belt:

Bond
Diamond sanding abrasive belt is divided into metal nickel plating electroplated bond and resin bond, a resin bond also consists of flexible and hard type.
Pattern
There are many grinding advantages such as sharpness, durable, flexible, dry or wet grinding for diamond sanding abrasive belt with various patterns. Please choose different design patterns according to needs.
Backing Base
The main characteristics of the backing are thickness, softness, temperature resistance, and easy quickly removal. Select the backing base according to the material which will be ground.

Bonded Type and Characteristics Analysis

Electroplated Bond Diamond Abrasive Belt

Diamond particles are bonded on the required coated pattern by nickel plating, which forms a sharp abrasive layer with very strong grinding force.

Resin Bond Diamond Abrasive Belt

Resin bond divided into flexible and hard resin according to the degree of hardness.
With good softness and flexible coated patterns, the flexible resin can better fit the surface of the workpiece and has better polishing performance. Because the resin is soft, wear is faster, and the temperature resistance is poor, it is not suitable to make coarse grit sized abrasive belt. While the flexible resin sanding abrasive belt must be for wet grinding, which also restricts the application under certain condition.

Thus, compared with the flexible resin, the wear resistance of hard resin is obviously improved, and the temperature resistance is better. Therefore, hard resin diamond sanding abrasive belt can dry grinding to meet the processing requirements of water-proof and oil-proof products. Thicker resin abrasive layers make sanding belt to be various meshes, forming the system application from rough to finish grinding. But hard resin belt is not relatively flexible and suitable for a roller with a larger diameter, especially for thermal spray coating industry grinding.

Performance of Electroplated and Resin Diamond Sanding Abrasive Belt

Bonded	Features	Performance	Grinding Force	Surface Quality
Electroplated	Can be used for dry and wet grinding, from rough to finish polishing	Superior grinding force	Electroplated〉Resin	Resin> Electroplated
Resin	More flexible bond, the flexible bond can be used for wet grinding, and hard resin bond can be used for dry grinding, from finish grinding to super finish polishing	Relatively slow and stable grinding speed, and can reach a better polishing effect	Hard resin> Flexible resin	Flexible resin>Hard resin

5.2 Key Points for Finding the Right Diamond Grinding Wheels

 

Grinding is one of the most important industrial processes. Grinding wheels are used in plenty across wide array of industries. The grinding tool being employed for the various purposes are as good as the wheel fitted to them. For the abrasive machining operation purpose one will have a number of options to choose from – saucer wheel, tapered wheel, straight wheel, and diamond grinding wheel. If one is looking for the best among the lot, diamond grinding wheel should be the ideal choice. Embedded with industry grade diamonds, these wheels provide the best result and is used by almost every top manufacturing unit across the globe.

Types of diamond grinding wheels

Diamond grinding wheels are well known to provide the sharpest and the toughest grinding result, and also work with precision. As an added advantage over the other options, diamond grinding wheels are heavy duty and long lasting as well, making investment on them worthwhile. However, there are a variety of diamond grinding wheels available in the market. Classification of diamond grinding wheel is done based on its shape, grit size, bond, and concentration. While getting a diamond grinding wheel it is important to find the perfect one suiting the purpose.

If we look at the industrial preference, the diamond and CBN wheel tops the chart. There is further classification of this type of wheel as well. The variations include vitrified, resin, electro-plated, and metal. Depending on the type of grinding needed and purpose of application, different types of wheels are used.

The most popular among all types is the resin bonded diamond grinding wheels. A large number of production applications require this type of wheel and almost every tool room has this type of wheel. It has got wide range of usage and application.
Both vitrified and metal bond diamond grinding wheels are specialised variations and have specific usage. These are not used widely and are actually rare to come by. In general these types of grinding wheels are custom made to suit the specific need of the specific workshop. The price is also high for these types of wheels.
For the low demanding abrasive grinding processes, such as that of plastics, the electroplated bonded diamond grinding wheels are perfect. Cut-off wheels generally use electro-plated variations.

 

Various types of grinding wheels are present for various purposes. Most of the time one type of grinding wheel can only be used for a specific grinding purpose. If the perfect grinding wheel is not used, chances are high that the result will not be as per requirement. Surface, material, and quality of grinding needed defines the type of grinding wheel that will be used for the purpose. Having an in-depth knowledge about the application of each type of wheel available will better help in determining which type of wheel will suit the specific need.

Super abrasive variety of grinding wheel

CBN and Diamond wheels are the most widely used varieties and suit almost every purpose. However, if the grinding to be done is that of carbide, diamond wheels should be the choice. CBN wheels are suited in case of grinding of steel. There are manufacturers who provide unique grits which will suit both steel and carbide grinding. These are perfect for those who have a variety of grinding to do and do not wish to invest on various types of grinding wheels.

Factors to determine which type of grinding wheel to use

• Hardness of item

  – The first thing to check will be the hardness of the item to be grinded. It is important to ensure that, the grinding wheel will be able to handle the hardness of the surface which will be grinded. For non-ferrous and hard metals (the ones besides iron and steel), if the requirement is to remove large amount of metal from the surface, best choice will be synthetic diamond grinding wheel. If grinding is to be dome of iron or steel, CBN grinding wheel should be used. For grinding of soft metals, alumina-zirconia grinding wheels should be chosen.

• Rotation speed

  –Having decided the hardness, it is important to check the speed of rotation of the wheel. Grinding apparatus comes with speed of rotation ratings, which is written in meters per second. It is important to check this and make sure that the bonding of the wheel will not come undone while being used.

• Type of grinding

  –The purpose of the grinding will require different type of grinding. So it is important to decide whether to opt for wet grinding or dry grinding. Wet grinding is for precision cutting. Moderate grinding can be achieved using the dry grinding method.

• Coarseness of wheel

  –Coarseness of the diamond grinding wheel needs to be checked while selecting. The coarseness gives the idea about the amount of metal that is going to be removed in the process of grinding. If the requirement is that of having a faster cutting, coarse grit should be the choice. In case of fine quality cut fine grit is necessary.

6. FAQ of Diamond Sanding Belt and Diamond Grinding Wheel
Can diamond sanding belt replace diamond grinding wheel?

Of course, diamond sand belt can replace diamond grinding wheel in many applications, and there are many advantages. Diamond sanding belt grinding faster, and has the expected surface finish, is used in finishing coating than the grinding wheel will have a better finish. 

What kind of surface finish can diamond sand belt achieve?

In HVOF/HVAF tungsten carbide coatings, it is common to achieve a surface finish of 0.10 or 0.08Ra microns.

Is diamond sanding belt expensive?

The cost of diamond sanding belt is much cheaper than diamond grinding wheel, so it is not expensive.

What should be considered for HVOF hard coated abrasive belt grinding technology?

The grinding process typically involves grades 2-4, depending on the initial Ra value and the final value of the desired Ra.

What are the application areas of diamond sanding belt?

Diamond sanding belt can be used for stone, glass, ceramics, monocrystalline silicon, polycrystalline silicon, synthetic materials, hard alloy, aluminum alloy and other hard brittle materials complex surface grinding processing.

What is the difference between diamond sand belt and CBN sand belt?

Diamond sanding belt is a super hard material coated abrasive tool with artificial diamond as abrasive material and a new manufacturing process. It has the dual advantages of softness of traditional coated abrasive tools and high hardness of diamond. Compared with the traditional abrasive sand belt, the biggest characteristics of diamond sand belt is high grinding efficiency, good durability, good finish, high cost performance, and has the environmental advantages of less dust and noise in the process of use.

The CBN belt is CBN abrasive, using a new manufacturing process research and development of super hard material coated abrasive products, CBN sand belt and ordinary abrasive sand belt is different in that it has the characteristics of ordinary abrasive coated abrasive soft, and make full use of the high hardness of CBN. Compared with ordinary coated abrasive tools, CBN abrasive belt not only has the characteristics of high grinding efficiency, high durability, low grinding temperature, good surface quality and high cost performance, but also has the advantages of less dust, less noise and good working environment in the process of use.

-All diamond tools can be ordered and fabricated!
-Henry Wang | Quote Manager
-WhatsApp:+86-13459035657
-Email: ceo@zdiamondtools.com
-Web www.zdiamondtools.com

Company Profile

Z-LION have been engaged in developing and manufacturing diamond sanding belt and diamond grinding wheel since its establishment 2002. 

If you would like to get a quotation about diamond tools, please contact us.