The characteristics and accuracy of the use of abrasive grinding workpiece

classification: Industry dynamics



Release time:2022-08-30 09:47

Grinding is the finishing and precision machining of the surface of the parts, which has the following characteristics.


1. Grinding with high dimensional accuracy Grinding Tang uses a kind of extremely thread micropowder to grind off a very thin layer of metal at low speed and low pressure. The heat generated during the grinding process is very small, the deformation of the workpiece is also very small, and the surface deterioration layer is very slight, so a high-precision surface can be obtained. The dimensional accuracy of grinding can reach 0.01Um.


2. High surface shape accuracy The cutting amount of grinding is small, the movement is complex, and it is not affected by the movement accuracy, so it can obtain high shape accuracy. The roundness of the sphere can reach o. yang 4, and the cylindricity of the cylinder can reach o.t 4 e. on the other hand, because the cutting amount of grinding is very small, the original position error cannot be fully corrected, so grinding cannot improve the position accuracy of the part.


3. There is a certain relative movement between the parts with small surface roughness value and the research tool, and each movement track will not be repeated with the soft trace of the previous movement, so the convex peaks on the surface of the parts can be evenly removed and the surface roughness can be reduced. Grinding surface rent roughness is generally up to Rd.01M.


4. To improve the surface resistance of the parts, the surface roughness of the parts is small, and the surface friction coefficient is reduced. The effective contact area is increased and the wear resistance is improved.


5. Improve the strength of the surface of the parts, there is compressive stress on the grinding surface, which is conducive to improving the fatigue strength of the surface of the parts.


6. Good manufacturability, simple equipment and convenient manufacture: grinding is not only suitable for single-piece manual production, but also suitable for batch mechanized production. Grinding can process steel parts, cast iron, various non-ferrous metals and non-gold chips. For example, hard and brittle materials such as glass, ceramics, and diamonds can be researched.


7. Wide range of applications Grinding is widely used in the processing of various precision parts in modern industrial production. Various block gauges, optical glass, precision tools, semiconductor components, precision mating surfaces, etc. all need to be ground.