Shot blast

- Sep 25, 2019-

Shot blast

Shot blasting is included in the casting process. Generally, we need this process in weavers and crafts. Today we will take a look at the shot blasting process.

Shot blasting is the name of a mechanical surface treatment process, similar to sandblasting and shot peening. Shot blasting is a cold treatment process, which is divided into shot blasting and shot blasting. As the name suggests, blasting is to remove impurities such as surface scale and improve the appearance quality. Shot peening is to use high-speed moving projectiles (60-110m/s). Continuous impact is strengthened on the surface of the workpiece, forcing the surface and surface layer (0.10-0.85mm) to undergo the following changes during cyclic deformation: 1. Modification of the microstructure; 2. Non-uniform plastic deformation of the outer layer introduces residual Compressive stress, residual tensile stress is generated in the inner surface layer; 3. outer surface roughness changes (Ra Rz). Impact: It can improve the fatigue fracture resistance of materials/parts, prevent fatigue failure, plastic deformation and brittle fracture, and improve fatigue life.


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