autofrettage

[aw-toh-fre-tahzh]

autofrettage Definition

a metalworking process in which a thick-walled tube or cylinder is subjected to internal pressure, causing it to yield and expand slightly, and then released, resulting in residual compressive stresses on the inner surface of the tube or cylinder.

Using autofrettage: Examples

Take a moment to familiarize yourself with how "autofrettage" can be used in various situations through the following examples!

• Example

  Autofrettage is commonly used in the manufacturing of high-pressure vessels.

• Example

  The process of autofrettage increases the fatigue life of the material.

• Example

  Autofrettage is a complex process that requires specialized equipment and expertise.

Phrases with autofrettage

• autofrettage process

  the process of subjecting a thick-walled tube or cylinder to internal pressure, causing it to yield and expand slightly, and then released, resulting in residual compressive stresses on the inner surface of the tube or cylinder

  Example

  The autofrettage process is commonly used in the manufacturing of high-pressure vessels.

• residual compressive stresses

  compressive stresses that remain in a material after a load has been removed

  Example

  The autofrettage process results in residual compressive stresses on the inner surface of the tube or cylinder.

• high-pressure vessels

  containers designed to hold gases or liquids at pressures significantly higher than ambient pressure

  Example

  Autofrettage is commonly used in the manufacturing of high-pressure vessels for industrial and scientific applications.

Origins of autofrettage

from French 'auto-' meaning 'self-' and 'frettage' meaning 'fretting'

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Summary: autofrettage in Brief

'Autofrettage' [aw-toh-fre-tahzh] is a metalworking process used in the manufacturing of high-pressure vessels. It involves subjecting a thick-walled tube or cylinder to internal pressure, causing it to yield and expand slightly, and then releasing it, resulting in residual compressive stresses on the inner surface of the tube or cylinder. The process increases the fatigue life of the material but requires specialized equipment and expertise.