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Autofrettage

Autofrettage is a method for increasing fatigue strength of components for use at high and pulsating pressures.
Autofrettage compresses a container’s inner surface, making better use of the material’s structural properties. The process can reduce fatigue concerns in pulsating applications and lets engineers reduce thickness in high-pressure applications without sacrificing strength, life, or safety.
The method is based on the reciprocal relationship of the plasticized inner zone and the elastically deformed outer zone. Components are placed under so much pressure that their interior structure becomes plastically deformed. After relaxing, pressure stress is created in these inner areas, which prevent the outer areas from reforming to their original shape and remain stretched. This prevents crack formation in the component, increases the lifetime of the components, and therefore offers cost reduction potential.
Typical applications are: liners and jackets for high-pressure pumps and #automotive common-rail injection components for cars and trucks.
Learn more: https://www.autofrettage-machine.com/
Contact us: https://pressuretests.com/request-information/