extrusion

Type: Concept

As of November 2026, extrusion has been mentioned in 2 episodes across 1 podcast, first heard Nov 2025 on Stuff You Should Know.

Extrusion is a process used to create objects of a fixed cross-sectional profile by pushing material through a die of the desired cross-section. Its two main advantages over other manufacturing processes are its ability to create very complex cross-sections; and to work materials that are brittle, because the material encounters only compressive and shear stresses. It also creates excellent surface finish and gives considerable freedom of form in the design process.