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What Are the Factors Affecting Abrasives' Wear?


Abrasives are known as the "industrial teeth" which are commonly used as machining tools for parts that need mechanical processing with abrasives or grinding tools, and to meet certain technical requirements.


Mechanism of Abrasives' Wear


When the abrasives move relative to the part surface, the abrasive forces can be divided into forces perpendicular to the surface and forces parallel to the surface.




Factors Affecting Abrasives' Wear


The effect of abrasives' particle size on wear


The wear of metals increases with the size of abrasive particles. When the particle size of abrasives increases to a certain size, the wear rate remains constant.


The effect of abrasives' geometry on wear


Abrasive particles with sharp corners and edges have a higher wear rate than smooth abrasives. After being worn out, the wear rate decreases; but if the abrasive particles are shattered, the wear rate will increase again.


The effect of abrasives' hardness on wear



Therefore, surface strengthening methods can be used to increase the hardness of parts to be equal or greater than the abrasive hardness to improve the wear resistance of parts. However, materials with high hardness can lead to decreased toughness and increased brittleness.


The effect of pressure on abrasives'wear


For abrasive wear, the wear rate is proportional to the pressure. For parts made of the same material, if the pressure is reduced by half, the service life will be doubled.


Measures to Reduce Abrasives' Wear


Reduce abrasives' entry


Configure various filters, increase dust-proof sealing devices, install magnetic separators, chip collection rooms and oil pollution degree indicators, frequently clean and replace air, fuel and oil filter devices.


Enhance the wear resistance of abrasives' parts


Improve the properties of parts materials with heat treatment and surface treatment, increase surface hardness, and try to make the surface hardness higher than the abrasive hardness.


Choose materials with good wear resistance


The use of medium carbon steel quenched and low-temperature tempered steel to obtain Martensitic steel can make parts not only wear-resistant, but also have good toughness.


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