What is grinding

Grinding utilizes abrasive particles coated or embedded in the abrasive tool, through the relative motion of the abrasive tool and the workpiece under a certain pressure on the surface of the finishing process (e.g., cutting).

Grinding can be used to process a variety of metal and non-metallic materials, the processing of the surface shape of the plane, internal and external cylindrical and conical surfaces, convex and concave spherical surfaces, threads, teeth and other profiles. The machining accuracy can reach IT5～IT01, and the surface roughness can reach Ra0.63～0.01 micron.

Expanded Information:

Characteristics of Grinding:

1, high dimensional accuracy of grinding

Grinding uses an extremely fine micro-powder to grind away a very thin layer of metal at low speeds and low pressures. The heat generated in the grinding process is very small, the deformation of the workpiece is also very small, the surface deterioration layer is very slight, so you can get a very high precision surface.

2, high surface shape accuracy

The cutting volume of grinding is very small, the movement is complex, and it is not affected by the precision of the movement, so it can obtain high shape accuracy. On the other hand, due to the small amount of cutting of grinding, the original positional error can not be fully corrected, so grinding can not correct the positional accuracy of the part.

3, small surface roughness

There is a certain relative motion between the part and the research tool, each motion track will not be repeated with the previous motion track, so it can be uniformly excised from the surface of the part on the peaks, reduce surface roughness.

4, to improve the wear resistance of the surface of the parts

grinding surface roughness is small, the surface friction coefficient decreases, the effective contact area increases, wear resistance is improved.

5, improve the fatigue strength of the surface of the parts

Pressure stress exists in the grinding surface layer, which is conducive to improving the fatigue strength of the surface of the parts.

6, good workmanship

Grinding equipment is simple, easy to manufacture; grinding is not only suitable for manual production of single pieces, but also suitable for batch mechanized production; grinding can be added

Working steel, cast iron, a variety of non-ferrous and non-golden metals. For example, it can grind glass, ceramics, diamonds and other hard and brittle materials.

7, a wide range of applications

Grinding is widely used in modern industrial production of a variety of precision parts processing, a variety of block gauge, optical glass, precision tools, semiconductor components, precision with the surface needs to be processed by grinding.

Baidu Encyclopedia - Grinding