Grinding Wheels | Types of Grinding Wheels | Hindustan Abrasives

Grinding Wheel | Types of Grinding Wheel

What is Grinding Wheel?

A vitrico grinding wheel is the most common equipment in the metallurgy industry. It cuts metals with different sizes, shapes, and efficiency. It is generally composed of two things. One is the abrasive cutting compound used for grinding. The other is the bond formed between the abrasives. A grinding wheel performs several operations in the grinding and the abrasive machining. These wheels find their usage in the grinding machines.

The uses of grinding wheels

To use the grinding wheel, it first clamped to the grinding machine. The wheel is then attached on the supporting arbors. The necessary force required to transfer the rotary motion. The force applies to the side of the wheels by sized flanges.

These grinding wheels can perform the task with very high tolerances. Very specific dimensions to grind the metal from both its exterior and interior. The major aim of a precision grinding wheel is to use the wheels of different composition. This produces metals with different shapes. The grinding wheels obtained of different shapes like round, square, cup and dishes. These grinding wheels are ideal for a wide range of materials and can perform hard grinding of tools, like steels and other metals.

A grinding wheel consists of a composite material. This coarse particles presses and then bonds together by the cementing matrix called a bond. This results in the formation of the sold circular shape of various types of the grinding wheel. Depending on the usage of the wheel, there are various profiles and cross sections of the precision grinding wheel available. Nowadays there are various types of material used for making of the grinding wheel. This depends on the usage of the grinding wheel. These are generally constructed out of sold steel and aluminum steel. The particle bonds with the help of the natural composite stones like that of millstones.

How is the grinding wheel produced?

In a grinding wheel, the function of the abrasive is the same as the teeth in the saw. The only difference is that the grinding wheel has millions of grains distributed throughout. These grains move against the workpiece. This results in removing tiny chips of unwanted material from the surface of the desired job. There are various types of precision grinding wheels available. These depend on the end product it has to interact with and its usage. It includes:

  1. Centerless Grinding Wheel
  2. Cylindrical Grinding Wheel
  3. Tool Room Grinding Wheel
  4. Surface Grinding Wheel
  5. Gear Grinding Wheel 
  6. Bench Grinder wheels and
  7. Grinding cup Wheel

The hardness and the type of material it is being used which define the surface of the grinding wheel.

The grinding wheels manufacturing takes place in a very precise and controlled process. This follows the prevention of the spinning disc from an explosion. This generally occurs due to high-stress conditions produced during rotations. With the next usage of the grinding wheel, it releases the individual grains of the abrasives. This then grows dull and increases the distance between the bonds. This results in the exposing of the fresh grains in the wear process which begins with the next cycle. The rate at which the wearing takes place is very predictable. It is very necessary for good performance of the grinding wheel.

The various characteristics of the grinding wheel

There are various important things taken into consideration for the grinding wheels. These include five characteristics, grain size, material, wheel grades, grain spacing, and the bond type. All these characteristics are indicated with the help of the color codes on the label of the wheel.

  • The abrasive grain: The type of material used as the abrasive grain depends on the hardness of the material that it grinds. This includes aluminum oxide, silicon carbide, ceramic, diamond, and cubic boron nitride. The grinding wheel prepared by using diamond and cubic boron nitride referred to as superabrasives. Those constructed with aluminum oxide, silicon carbide, ceramic grains referred to as a conventional type of abrasives.
  • The grain size: The type of grain size determines the average physical size of the abrasive grain. The larger the grain size the faster it will cut and create a poor finish. For ultra fine grain sizes, they result in forming finished products.
  • The wheel grade: This determines the tightness of the bonds holding the abrasives. The wheel grade affects all the considerations of grinding. This includes wheel speed, coolant flow, feed rates, and grinding depth.
  • The grain spacing: This depends on the spacing of the structure. It determines the ratio of the bond and the abrasive to the air space. A less dense wheel will cut and a large cut with creating an effect on the surface.
  • The wheel bond: This determines how the wheel holds the abrasive. It also affects considerations like finishing, coolant, least and greatest wheel speed.
The types of grinding wheels

There are various types of grinding wheels available on different specifications. These depend on the type of abrasive used, the size created and finished product. This includes:

  • Straight wheel: They find their usage in different types of tools like chisels. It can perform grinding of various types.
  • Cylinder or wheel ring: It finds its usage for the production of flat surfaces.  The grinding happens with the end face of the wheel.
  • Tapered wheel: It finds its usage for grinding of thread and gear teeth.
  • Straight cup: It finds its usage for the cutting of tools and cutter grinders.
  • Dish cup: It finds its usage for cutter grinder and jig grinder.
  • Saucer wheel: It finds its usage for grinding of miller cutters and twist drills.
  • Diamond wheels: These finds its usage in the grinding wheels used to perfect industrial diamonds.
  • Cut off wheels: These find their usage in the construction of reinforcement bars. It also goes for anything that needs a quick removal and trimming.
Conclusion

The best quality grinding wheel can perform your task with efficiency. It also results in end products with proper finished materials. It is very important to check the grinding wheel before using it.

2 Comments

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