What is extrusion definition?

Extrusion is a manufacturing process that involves feeding a material through a hopper into a screw-driven barrel. The material is then heated, compressed, and forced through a die to create a continuous or semi-continuous shape or product.

Extrusion can be used to produce a variety of products, including plastic tubes, pipes, film, sheeting, and profiles, as well as metal and ceramic components. The process can be carried out using different types of materials, such as thermoplastics, thermosets, rubber, metals, and food ingredients.

Extrusion is a versatile and efficient manufacturing process that allows for high-speed production of complex shapes with consistent quality. It can also be used for recycling and repurposing materials, as well as for adding functional features to products through co-extrusion or post-extrusion processing.