shotblasting

Shotblasting is a surface treatment process that uses a high-velocity stream of abrasive media to clean, roughen, or remove material from a surface. This media, often referred to as shot, can consist of steel grit, steel shot, or even other materials like glass beads, depending on the desired outcome. The process is typically carried out in a specially designed blast chamber or cabinet to contain the abrasive material and any dust generated.

The abrasive media is propelled at high speeds by a wheel-driven impeller or by compressed air. The impact of the shot particles against the workpiece creates a peening effect, which can improve the material's fatigue strength and resistance to stress corrosion cracking. Alternatively, the impact can be used to remove rust, scale, old paint, or other unwanted surface contaminants. Shotblasting can also be employed to create a desired surface texture, such as for improving paint adhesion or providing a decorative finish.

The depth and nature of the surface alteration are controlled by factors such as the type and size of the abrasive media, the velocity of the shot, the duration of the blasting, and the distance between the nozzle and the workpiece. Shotblasting is a versatile process used across various industries, including automotive, aerospace, construction, and manufacturing, for a wide range of applications.