EXTRUSION

EXTRUSION

In this process, aluminum is not in a liquid state but rather a malleable solid. Therefore, it can take the desired shape through pre-fabricated molds during the extrusion. The process is similar to a toothpaste tube that, when squeezed, dispenses the cream in the shape of the tube's nozzle.

Old Extruder

Current Extruder

In extrusion, a cylindrical aluminum billet is heated until it reaches the plastic zone of the material in the range of approximately 400°C to 500°C. Then, the material is pushed against a steel die that has one or more openings in the desired shapes.

Pressure Disc

Aluminum Billet

Platen

Main Piston Head

Piston

Matrix

Backer and Bolster

Extruded Profile

Bolster

Feeder

Extruded Profile

Solid Tool

Backer

Die Holder

Aluminum Billet

Solid Tool

Tubular Tool

Spine

Die Holder

Matriz

Extruded Profile

Bolster

Backer

Aluminum Billet

Applications

The field of application for aluminum extrusions is vast, including, for example, the construction industry, furniture industry, automotive industry, machinery, accessories, household appliances, electronics, among others.

Simple Variations

Complex Variations

Plate

Surface Finish

The quality of the surface finish of extruded profiles is directly related to the finish of the die lands. However, we know that the quality of the aluminum used also has a significant impact on the final result. Therefore, a good tooling design should also prevent the extrusion of the oxidized surface of the billet (re-melt layer).

Matrix

Chamber

Chamber

Die Holder

Matrix

Extruded Profile

Aluminum Billet

Punch

Indirect Extrusion

Lateral Extrusion

Direct Extrusion

In this brief summary, we can conclude that the extrusion process is a metallurgical process that involves the hot plastic deformation of an aluminum billet. As for variations in Extruded Profiles, they can range from simpler cross-sectional shapes to complex sections. Want to learn more? Contact us!