When a component is bombarded with a stream of round metallic media (referred to as shot), each shot dents the surface of the part that it impacts. This impingement of metallic media causes plastic deformation on the part surface. This extends the superficial layer creating compressive stresses underneath and providing a balance to the applied working (tensile) stresses. This residual compressive stress delays the formation of fatigue cracks thereby increasing the useful life of a component.

The layer of compressive stress commonly extends to depths varying from 0.125 mm to 0.85 mm. Greater depths, if desired, are achieved by altering process parameters such as shot size, velocity of impingement, exposure time etc.

The two commonly used parameters to gauge the effect of peening are intensity and coverage. Where as coverage (100%, 200% or higher) is purely a visual check, intensity is measured by deflection of a representative strip of spring steel (commonly called the Almen strip).

We design and manufacture Shot Peening Machine for the following applications.

Auto components :
Axle shafts, Gear wheels, drive shafts, connecting rods, crank shafts, leaf springs, coil springs, rocker arms, valve springs, chain wheels, pins, universal joint yoke, clutch facing springs etc.

Aeronautic and space travel:
Air frames, landing gears, gears, air foils, flaps, propellers etc.

Machine components:
Springs, disc springs, gears, splines, torsion bars, spindles, worm and wheel, threaded spindles, fastners, pins etc.