The sandblasting process is a mechanical technique for the controlled cleaning of a surface, usually metallic. It is made by erosion thanks to the abrasion generated by propelling metal shots or grit with compressed air lances.
Another method uses wheel blasting machines. The sandblasting process, in addition to allowing the surface of a metal product to be cleaned from residues and corrosive scales, can also be used to obtain a particular surface roughness for subsequent coating or painting processes. In the case of shot-peening, on the other hand, it’s used to add strength and reduce the stress profile of special components.
