Analysis Of Factors Affecting The Selection Of Coated Abrasives?

We need to consider the following factors:

 

1. The material of the workpiece to be ground:
There are many kinds of materials that can be ground, such as stainless steel, tool steel, construction steel, castings, forgings, aluminum, titanium, aerospace materials, glass, ceramics, wood, plexiglass, etc., but their respective grinding conditions are different. same. In addition to the properties of the material itself, some physical properties of the material are also important for the selection of abrasives, such as hardness, toughness, microstructure, heat treatment conditions, and alloy types.

 

2. Use of pressure:
The pressure used in grinding can be divided into high, medium, and low. Knowing the pressure required for grinding can assist in abrasive selection.

 

3. Surface roughness requirements:
The Ra or Rt value of the workpiece surface is very important. In some applications that require surface polishing and surface brushing, surface treatments such as silk pattern, brush pattern, fog pattern, mirror surface, and polishing will also be carried out according to customer requirements.

 

4. Product shape and tolerance requirements:
The condition and shape of the workpiece surface are particularly important to the selection of abrasive tools and curvature, and the control of workpiece tolerance is also one of the factors that need to be considered.

 

5. Grinding speed and machine speed:
The speed at which the abrasive tool runs depends on the speed at which the machine spindle runs. RPM (rotational speed) and grinding speed need to be converted.

 

6. Grinding and cooling conditions:
The choice of grinding coolant depends on the requirements of the grinding workpiece.

 

7. Machine power:
The operating power of the machine can effectively control the grinding amount of the workpiece. Selecting the Optimal MRR - Material Removal Rate, Speed, Depth of Grind, and Feed helps in selecting the proper coated abrasive, also considering the power requirements of the machine.

 

8. Supports, fixtures, pressure cylinders, and contact wheels:
Supports, fixtures, pressure cylinders, contact wheels, etc. should also be determined according to the type of material. Fixtures and contact wheels can effectively improve the grinding pressure and efficiency.