Effect of alloy steel shot quality on workpiece shot peening effect

　　If the shot peening effect is to be ideal, there are many necessary conditions. Good original surface of the material, selection of appropriate shot peening pressure, selection of appropriate alloy steel shot, process and technical issues, etc. are all very important conditions. Then the quality of alloy steel shot is very important. The impact of shot peening on the workpiece. I believe that through the previous introduction, you should have a certain understanding of alloy steel shot. You know that this product is widely used in the foundry industry with its own advantages, and it can very well help remove sand from the surface of workpieces. , but if you want the shot peening effect to be ideal, there are many conditions involved, and the quality of the product also affects the shot peening effect of the workpiece. What impact does the quality of the product have on the shot peening effect? Let’s find out together.

　　1. The influence of alloy steel shot on the surface roughness of materials is usually in the range of Ra0.6~20mm. Without changing the process parameters, the higher the original surface roughness of the material, the greater the Ra value after shot peening. Production practice has proven that, in general, if the surface roughness before blasting is below 6.3mm, shot peening can improve or maintain the original surface roughness. If the original surface roughness is above 6.3mm, the surface roughness after shot peening will be reduced.

　　2. Alloy steel shots of different specifications have different hardnesses, but products with different hardnesses have different cleaning effects on workpieces. The greater the hardness, the greater the brittleness. When cleaning workpieces, although the cleaning efficiency is Greatly improved, but the consumption of steel shots will also increase, and the service life of steel shots will also be shortened. Therefore, from the perspective of economic benefits, we recommend choosing steel shots with moderate hardness for general workpieces for rust removal. deal with.

　　3. The treatment effect of the workpiece is not only related to the hardness of the alloy steel shot, but also to its model and shape. For example, products with irregular surfaces have higher rust removal efficiency than round products, but the surface is rougher. Therefore, when consumers choose steel shot for rust removal, they must start from the model, hardness, specification and shape of the steel shot according to their actual needs.

　　4. The enhanced shot peening of the product will cause plastic deformation of the sprayed surface of the part, causing the surface roughness of the part to change. Surface roughness is a microscopic geometric shape error, also known as microscopic roughness. Surface roughness, like surface waviness and shape error, all belong to the geometric shape error of parts. Surface roughness has an important impact on the performance of machine parts. Through the introduction of the above content, it is not difficult to see that the quality of alloy steel shot has a considerable impact on the shot peening effect of the workpiece, so this requires us to pay more attention to the above issues when using it, so as to ensure that the product is used It can complete the elimination work very well without affecting the effect of shot peening on the workpiece. Of course, when using it, it must be used according to the correct operating steps so that the function of the product can be fully exerted.