Tag Archives: Metal Works

Common Applications of Shot Peening

a man working on metalShot peening is one of the most cost-efficient and effective techniques to create surface residual compressive pressures to extend the life of processed metal parts. This method is likewise used for hardening to straighten distortions, enhance wear features, texture surface, and produce aerodynamic curvatures for aerospace-related applications.

The common media used for shot peening include ceramics, steel and glass.

Spring Making

Cams and camshafts, gearwheels, coil springs, connecting rods and suspension springs use shot peening. It is a crucial process in making different types of springs, such as leaf, extension, and compression springs. Shot peening is also used for engine valves because of its high cyclic fatigue that ensures longevity.

But as modern engines evolve, automotive manufacturers are transitioning to better machines to create higher stressed valve springs. Newer designs require multi-step shot peening that can withstand the extreme surface pressure that may exceed material specifications.

Cosmetic Effect

The process can be used for aesthetic purposes as well. The abrasive blasting and shot peening can spread on materials on metal surfaces to create a better finish.

When the shot particles or grit are placed through a powder or liquid that has the desired finishing, they affect how the appearance of plates or coats will turn out. This process is widely used to embed ceramic finishing, although it is not high-coverage. Fine powders of metals or non-metals are placed onto the surface using a blast medium. The process now uses solid lubricants like molybdenum disulphide when applying to surfaces.

Shot peening is a long-established technique for various types of applications in different industries. It offers many benefits, including resistance to hydrogen embrittlement, stress-corrosion cracking, cavitation erosion and intergranular corrosion.