Custom Aluminum Axtrusion Manufacturer

If you are looking for extruded profiles cut to length and you need them in large volumes, then you should definitely contact an extrusion company directly. There are many extrusion companies that hanle high volume production. At Coyo, we offer custom aluminum extrusion services.

In contrast to traditional extrusion companies, we have a large number of CNC machines, so we can perform precision post-processing in-house.

Customization

We offer custom aluminum extrusion profiles, and we can combine extrusion with other manufacturing methods such as CNC milling, turning and bending to create the final part.

What is aluminum extrusion?

Aluminum extrusion is the process of forming aluminum material by forcing it through a forming opening in a die. When extruded in this manner, the aluminum material emerges from the die as an elongated piece with a continuous cross-sectional profile, and that profile can be very complex and fine. For the layman, a simple explanation of extrusion is to consider how pasta shapes or perogies are made. In both cases, the dough is fed into a chamber, pressure is applied by turning a crank or handle, and then the strands of dough are extruded through a small hole. Changing the attachment of this hole affects the cross-section of the strands, allowing you to choose between spaghetti, macaroni, or something else.

Of course, aluminum billets are not as malleable as spaghetti dough, so the aluminum extrusion process requires a lot of force - usually through a lot of hydraulic pressure - and in some cases, heat.

How does aluminum extrusion work?

The aluminum extrusion process can be performed in one of two ways: hot extrusion or cold extrusion. There are reasons to use both methods. Hot extrusion allows more aluminum to be fed quickly into the die at lower pressures, while cold extrusion produces parts with excellent mechanical properties, good surface finish and oxidation resistance.

To extrude aluminum by the hot extrusion process, aluminum billets must first be cut to the proper size. They are then heated in an oven to a temperature between 300 °C and 600 °C so that the metal becomes soft but not liquid.

While the cut aluminum billets are heated, a hydraulically driven punch presses them into a die, which may have a standard aperture (i.e., a round or square hole) or a custom profile. A tremendous amount of pressure - about 10,000,000 pounds - is required to force the heated aluminum through the die.

The extrusions are then cooled on a cooling table and cut to length according to customer requirements. Heat treatment can also be applied to harden the aluminum.

Common Extrusion Applications

Aerospace

Automotive 

Trains 

Marine 

Construction 

Medical equipment 

Display Industry 

Heat Sinks 

Electronics 

Automation

Standard aluminum extrusion profiles

Custom aluminum extrusions can be cut to any two-dimensional cross-sectional shape. However, there are several standard aluminum extrusion profiles available for many projects, including various forms of extruded aluminum rods and extruded aluminum channels.

Standard profiles include

Round bar 

Square bar 

Round Tube 

Square tube 

L-shape 

U-shape 

T type 

C type 

J type 

F type