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.
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.
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.
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.
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
Aluminum extrusions are used in large quantities to produce non-decorative components such as tubes and frames where finishing may not be particularly important. However, custom aluminum extrusions are also used to produce high-value products that may benefit from the addition of color, text, logos and other finishing procedures.
Basic machining: Finishes such as polishing, sandblasting and grinding can be performed to adjust the surface quality of aluminum extrusions, sometimes in preparation for other surface finishes.
Anodizing: Aluminum extrusions can be anodized to give them a scratch and oxidation resistant coating and an excellent appearance.
Painting: Whether the part needs a matte, glossy or textured finish, painting is an effective way to change the color and surface appearance of aluminum extrusions.
Powder Coating: Powder coating is a suitable alternative to anodizing, offering excellent chemical resistance and tonal consistency.
Screen printing: Screen printing is one of the easiest ways to add text and logos to aluminum profiles and is less expensive than machine-finishing processes.
Laser engraving: Laser engraving can be used to add detail (including text) to extrusions and will not wear off over time. As such, it is useful for basic features such as part serial numbers.
Aluminum extrusions are used in heavy industry, aerospace, the food industry and elsewhere. Common aluminum extrusions include extruded aluminum radiators and profiles for tracks, frames and rails.
Industrial: Extruded aluminum is used in the manufacture of industrial equipment such as workbenches and carts, as well as extruded aluminum frames/extruded aluminum frames. Standard framing systems include extruded aluminum T-slot construction frames (80/20 extruded aluminum frames).
Construction: Architecture and construction provide a variety of uses for aluminum extrusion, such as extruded aluminum rails, balustrades and ladders.
Electrical: Aluminum is electrically conductive, so in its extruded form it can be used for lighting components such as LED aluminum profiles, solar panel support structures and more.
Transportation: Extruded aluminum is suitable for the manufacture of items such as automobiles, carriages and marine trailers.
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