What is Autofrettage?

Autofrettage is a technique used on tubular metal components in which enormous amounts of internal pressure causes portions of the part to yield plastically, resulting in internal compressive residual stresses once the pressure is released.

The goal of autofrettage is to increase the durability of the final product by inducing residual compressive stresses into the material.

The autofrettage process is used to change the inner surface of a container/tube by inducing permanent compression to its inner layers.

With our specialized equipment and high pressure experience, Maximator Test can assist you with your autofrettage project large or small; whether you have 5 parts or 5,000 we can help determine how best to seal your components and develop the process to help increase their fatigue life.

Autofrettage Links