Leading Manufacturer of the top curved aluminium extrusion Products in China - YUZHI

How to Curve Aluminum Extrusion?

There are several techniques for bending aluminum extrusions to create curved profiles:

Stretch Bending - The extrusion is clamped and bent around a large radius die using a machine that stretches the aluminum. Best for gentle curves.

Mandrel Bending - A thin-walled extrusion is wrapped around a tight radius mandrel for an accurate bend. Fast and consistent.

Roll Bending - An extrusion is progressively shaped through a series of bending rollers. A flexible and cost-effective approach.

Ram/push Bending - A semicircular ram forces the aluminum to conform over a form block.

Rotary Draw Bending – The extrusion is pulled through a round clamping die to induce tight radial bends.

Other Methods:

  • Three-roller bending
  • Compression bending
  • Stretch forming

The optimal technique depends on the required bend parameters, extrusion design, end-use application, and production volumes. Each exploits aluminum’s malleability to create permanent curved forms.

What Are Curved Aluminum Extrusions?

Curved aluminum extrusions are elongated aluminum profiles that have been bent into curved shapes during or after the extrusion process. They may contain:

  • Gentle curves formed through stretch bending over large radius dies
  • Tight bends made by wrapping around mandrels
  • Multiple gradual bends from passing through many roller dies
  • Tight radial curves induced by rotary draw bending

Unlike straight aluminum extrusions which maintain a constant cross-section, curved extrusions undergo controlled deformation forces that leave their cross-sectional profile intact while adding arcing shapes.

The combination of aluminum's malleability and the versatility of bending techniques allows the creation of extruded parts with both linear and curved sections. The curved aluminum offers functions not achievable using solely straight extruded profiles.

Why Use Curved Aluminum Extrusions?

Curved aluminum extrusions provide benefits beyond functionality by enabling more design options:

Structural Enhancement - Curves strengthen structures by dispersing stresses. Bends also allow larger span lengths.

Space Efficiency - Arcing profiles nest compactly and occupy less volume for transport or storage.

Aesthetic Variety - Curves introduce visually appealing shapes into products like furniture, architecture, exhibits, vehicles, and consumer goods.

Easier Joining - Bent sections interface cleanly with flat planes. This simplifies welding, mechanical fastening, or adhesive bonding to other components.

Light Weight - Aluminum's innate lightness allows larger or longer curving parts while minimizing product weight.

Durability - Aluminum naturally resists corrosion and requires little maintenance even when curved.

Customization - Extrusion bending provides extensive flexibility in part shapes. Almost any stable curve can be formed.

With advantages spanning engineering, manufacturing, visual appeal, and cost domains, curving aluminum extrusions solves problems straight extrusions cannot.

How Do Curved Aluminum Extrusions Work?

Curved aluminum extrusions function by undergoing controlled bending forces that transform straight extrusions into arched shapes:

1. extrusion is constrained by clamping dies and rigs. This allows strategic points along the length to be bent while keeping the overall part intact.

2. A combination of stresses is exerted, such as tensile stretching, compressed wrapping, drawing over mandrels, or rolling. These introduce plastic deformation into the aluminum profile.

3. The aluminum alloy elongates on the outer curve while compressing on the inside to create a permanent bend without cracking or collapsing the profile.

4. The deformation progresses until the component matches the die shape and desired curve measurements.

5. Removing the bending forces, the profile retains an arcing form with the same cross-section as the original straight extrusion.

Engineered bending parameters balance the malleability and strength of the aluminum with its minimum bending requirements to produce robust, curved extruded parts.

The curved sections then serve various mechanical, aesthetic, storage, or handling functions demanded by product designs.

People May Ask

Which Bend Radius Is Ideal?

The bend radius for the industry is 0.030", which guarantees consistent, superior products with strong structural integrity.

Can You Bend 6061 Aluminum?

6061. One of the most adaptable alloys in the heat treatable family is this one. It can be utilized for bending in the annealed condition because the elongation is up to 18% and the yield and tensile strengths varied by 10 Ksi.

How Can Metal Be Bent without Splitting It?

Annealing or softening. Heating will be beneficial since it will anneal the material, which will make it softer and easier to bend. Additionally, it aids in reducing the cracking you are experiencing.

Does Aluminum Progressively Get Stronger?

In contrast to other metals, which can become brittle at very low temperatures, aluminum and its alloys adapt well and grow even more resilient.

Does The Cold Make Metal Stronger?

At all temperatures, aluminum fractures have a ductile tendency. When subjected to very low temperatures, many metals experience changes in their characteristics. Strength, hardness, brittleness, and durability all alter as a result.

How Hot Does Aluminum Start to Warp?

When exposed to heat above 400 degrees Fahrenheit, aluminum is significantly more prone to distort and warp. Due to its great heat conductivity, aluminum may be more difficult to weld. Additionally, aluminum reacts with food ingredients, making it unsuitable for use in cooking appliances.

How Is 6061 Aluminum Sheet Bent?

0:05 <> 3:46This is a 6061 T6 aluminum piece that needs to be bent 90 degrees. You are aware that it's more

How Is Bent Extruded Aluminum Straightened?

Without further tearing or breaking during the repair procedure, the item might be straightened or re-formed with the careful application of heat (400 0–500 0 F). The material will get softer at temperatures of 550 0 F and above.

Can Aluminum Be Weakened by Heat?

The alloy offers a low strength at temperatures above 150 °C, with depreciation escalating over time. Over 200 °C, the weakening becomes significant and is accompanied by some ductility gain.

What Is The Permitted Bend Radius?

On either side of the fitting position, the bend radius should be kept to a maximum of 100 x OD for a distance of around 5 times the pipe diameter. be needed to field bend the pipe, and if the retraint lip or are unintentionally released when bending, the pipe may spring back violently.

Curved Aluminium Extrusion Products

curved aluminium extrusion factory manufacturer supplier

Black anodized MakerBeam XL (15mmx15mm) Regular Starter Kit including beams, brackets, nuts, and bolts

curved aluminium extrusion

For 2020 Series 6mm Slot Aluminum Extrusion Profile Accessories, 30Sets 2020 Corner Bracket L-Type Internal Connectors (Black).

Extruded Aluminum Profile T Slot Rail Conner Bracket Accessories Hardware Kit, Aluminum Frame Side Angle Fastener 20 Sets, Aluminum Extrusion 2020 Connectors, and

Coavoo 2080 Aluminum Extrusion 20mm x 80mm 20 Series V Type Profiles, Extruded Aluminum, 59.06 inch / 1500mm Length, Black, 1 Pack European Standard Linear Rail Frame in Anodized, 1 Piece

TTZEZE 20 Series 3-Way End Corner Bracket Solid Connector with M4 Screw for Standard 6mm T Slot Aluminium Alloy Extrusion Profile 3D Printer Parts, Thickness 5mm, 4PCS Black Aluminum Profile Connector

For use with 3D printers, CNC DIY, laser engraving machines, furniture, supports, lighting equipment, and workbenches, 4 pieces of 2020 T slot 600mm aluminum extruded aluminum are available.

For use with 3D printers and CNC DIY, Mssoomm T Type 2020 Aluminum Extrusion Profile with Arc Angle European Standard Anodized Silver Linear Rail Guide Frame, Length 39.37 inch/1000mm, 1Pcs

1 piece 39.37 inch 1000mm 2040 T Slot European Standard Anodized Silver Linear Rail Guide Frame for 3D Printer Laser Engraving Machine CNC Workbench by BELLA BAYS

For 2080 aluminum extrusion, Shion.Kwoo assembled a 2080 V-slot gantry plate with a set of six POM wheels (2080).

Black M6x8mm Screws for 4Set 3030 3-Way End Corner Bracket Solid Connector for 3030 Aluminum Extrusion Accessories

Top Reviews

Earl Powell

These 20 x 40 mm rails are frequently found on CNC routers, diode laser engraver cutters, and 3D printers. These strike me as building blocks akin to the LAGOs of today and the Erector sets of a century ago. These extruded aluminum rails, however, are intended for makers, creators, and innovators in the field of digital manufacturing. Although the 200mm pieces are a bit too short for me to use on my current projects, it's still good to see the quality and almost flawless way in which their design goal has been executed. There are a ton of accessories that are difficult to interface control.


The length of each of the four sections of 2040 extrusion is the proper 200mm. neither flaws nor damage. 5 stars!


These are a wonderful pair if you need aluminum profiles. precise lengths and milled to specifications. It's not a major deal, but you must use metric bolts.

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