Oxiso Fine Shot Peening (OX-FSP)
The shot peening is a cold working process used to produce a compressive residual stress layer and modify mechanical properties of metals and composites. It entails impacting a surface with shot (round metallic, glass, or ceramic particles) to create plastic deformation. This is the technology to jet particles as small as several10 micron meters with compressed air and let them hit on an object at a high speed, while the original shot peening flow speed was about less than 100m/sec or more. The OX-Polish process provides the precise selections of shot condition to fit to material quality, heat treatment background, hardness of an object, and environment in use, that allows the process under an optimal condition. And as the result, the fatigue strength and sliding performance are considerably improved. Besides, residual compress stress and oil film retention are increased.
Consequently, a better heat treatment on surface, higher residual compressive stress, and excellent sliding performance are realize.