#shot blasting

• To shot-peen — The act of transforming raw metal pieces into small spherical granules or pellets (shot) through melting, controlled casting, or mechanical calibration processes. In an extensive industrial sense, the term refers to shot peening or blasting a hard metallic surface by continuously bombarding it with steel or iron pellets, aiming to clean rust, remove burrs, or structurally harden the material.
• Shot peening — The act of shot-peening and its result; an industrial technological operation of shot-blasting, hardening, or finishing metals, performed by projecting a dense jet of metallic pellets onto a surface. This structural process modifies the mechanical properties of the surface layer, inducing compressive stresses that prevent crack propagation, eliminate oxidation, and prepare the material for subsequent galvanic coating or painting.