How to make shot blast in
spring?
Spring is shot peening solution at the beginning of production using * * pieces, one of the very is a circulatory system for the load, very easy to produce fatigue damage of various narrow spiral spring, leaf spring, torsion bar spring, so spring manufacturer that must be solved to carry out the shot peening.
Shot peening solving the distribution after spring forming and tempering treatment.
USES a small metal ball or metal materials, the rate at which dozens of meters per second, repeatedly sprayed onto the surface of the spring to cause a lot of small pit, presents a bag shaped, cover the spring surface, causing cold work hardening on the surface, and ease or remove spring surface defects,
Methods such as small cracks, gaps and carburizing layer, etc. )
The harm of efficacy, thus prolonging the service life of the exhaustion of spring reasonably.
Should pay attention to when shot peening operation: (1) proper selection of the projectile types and specifications, to prevent the application of sharp projectile hurt spring surface water chestnut;
(2) the effective selection of shot peening machine, set high injection rate;
(3) in the standard will be under the condition of moderation for shot peening time longer, though it is not like that can increase the compressive strength of the spring again, but can obviously improve the penetration rate of shot peening, also can improve the fatigue life.
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